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Sonochemistry-assisted Reversible Addition-Fragmentation Transfer Polymerization for Multicolor Room-temperature Phosphorescent Polymers
IF 4.6 2区 化学
Polymer Chemistry Pub Date : 2025-01-28 DOI: 10.1039/d5py00018a
Zhenhua Wang, Wenjing Liu, Ruoqing Zhao, Jinhong Han, Chen Wang, Xiaoyang Shao
{"title":"Sonochemistry-assisted Reversible Addition-Fragmentation Transfer Polymerization for Multicolor Room-temperature Phosphorescent Polymers","authors":"Zhenhua Wang, Wenjing Liu, Ruoqing Zhao, Jinhong Han, Chen Wang, Xiaoyang Shao","doi":"10.1039/d5py00018a","DOIUrl":"https://doi.org/10.1039/d5py00018a","url":null,"abstract":"Invitation to submit to Polymer Chemistry The coupling of ultrasound with reversible-deactivation radical polymerization offers intriguing possibilities to synthesize polymers in hetergenous medium as ultrasonic wave is benificial to achieve uniform monomer dispersion and mitigate aggregation. In this study, sonochemistry-assisted reversible addition-fragmentation chain transfer polymerization (SA-RAFT) was demonstrated to exhibit first-order kinetics throughout polymerization and excellent control over the growth of the polymer nanoobjects in suspension, providing a high monomer conversion (~90%) and a gradient copolymer (GCP) with predetermined molecular weight. In addition, the GCP films could emit full-visible-spectrum room-temperature phosphorescence under UV irradiation via Förster resonance energy transfer. Remarkably, the GCP films could be stretched to approximately 400% and maintain stable RTP emission under a strain up to 150%.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"21 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143050492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis of Poly(3,4-propylenedioxythiophene) (PProDOT) Analogues via Mechanochemical Oxidative Polymerization
IF 4.6 2区 化学
Polymer Chemistry Pub Date : 2025-01-28 DOI: 10.1039/d4py01253d
Tanzida Zubair, Raul S Ramos, Ashley Morales, Robert Mark Pankow
{"title":"Synthesis of Poly(3,4-propylenedioxythiophene) (PProDOT) Analogues via Mechanochemical Oxidative Polymerization","authors":"Tanzida Zubair, Raul S Ramos, Ashley Morales, Robert Mark Pankow","doi":"10.1039/d4py01253d","DOIUrl":"https://doi.org/10.1039/d4py01253d","url":null,"abstract":"Conjugated polymers (CPs) are foundational materials in established and emerging organic electronic technologies, including organic photovoltaics, lithium-ion batteries, electrochromic displays and smart-windows, and thin-film transistors. Although CPs can be prepared via sustainable syntheses relative to their inorganic counterparts, current polymerization methods often invoke the use of toxic, hazardous solvents, such as toluene, chlorobenzene, or dimethylformamide, and high-temperatures (T > 100°C) to afford polymer products in desirable yields and molecular weights (Mn). Here, we report the solvent-free synthesis of poly(3,4-propylenedioxythiophene) (PProDOT) analogues using mechanochemical oxidative polymerization without the application of external heating. PProDOT-OC6, which is functionalized with n-hexyloxy sidechains, is synthesized in 46% yield with a Mn of 16.9 kg/mol in 1 h using only a milling jar and ball, FeCl3 oxidant, and NaCl as an additive. The structural fidelity of mechanochemically synthesized PProDOT-OC6 is confirmed via 1H-NMR relative to PProDOT-OC6 synthesized using solvent based oxidative polymerization, in addition to the optical absorption and electrochemical properties. The optimal mechanochemical polymerization conditions are then applied to PProDOT analogues with extended, n-decyloxy (PProDOT-OC10) or oligo(ethylene glycol) sidechains (PProDOT-OEG3) to demonstrate the tolerance of these solvent-free polymerization conditions towards structurally diverse sidechains. These findings offer a new platform and approach for further developing sustainable CP polymerization methods.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"28 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143050490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Functionalized Cyclic Olefin Copolymers: Chemoselective Polymerization of Cyclopropane-Containing Norbornadiene Dimer using Titanium Catalyst and Post-Polymerization Modification
IF 4.6 2区 化学
Polymer Chemistry Pub Date : 2025-01-27 DOI: 10.1039/d4py01310g
Yusuke Iwata, Takeshi Shiono, Shin-ichi Matsuoka
{"title":"Functionalized Cyclic Olefin Copolymers: Chemoselective Polymerization of Cyclopropane-Containing Norbornadiene Dimer using Titanium Catalyst and Post-Polymerization Modification","authors":"Yusuke Iwata, Takeshi Shiono, Shin-ichi Matsuoka","doi":"10.1039/d4py01310g","DOIUrl":"https://doi.org/10.1039/d4py01310g","url":null,"abstract":"The synthesis of functionalized polyolefins is important for turning their properties and expanding their application range. However, the copolymerization of olefins with polar monomers using early transition-metal catalysts remains a formidable challenge. Here, we demonstrate a synthesis strategy through the Ti-catalyzed addition polymerization of a cyclopropane-containing norbornadiene dimer (<strong>1</strong>) followed by post-polymerization modification (PPM). The polymerization of <strong>1</strong> using a constrained-geometry Ti catalyst afforded poly<strong>1</strong> with narrow molecular weight distributions (<em>Đ</em> &lt; 1.3), wherein the molecular weight linearly increased against the monomer conversion. Additionally, the copolymerization of <strong>1</strong> with 1-octene proceeded rapidly, and <strong>1</strong> was consumed faster than 1-octene to form gradient copolymers. The <small><sup>13</sup></small>C nuclear magnetic resonance (NMR) spectroscopic analysis of the polymers indicated the coordination-insertion of the alkenyl group of <strong>1</strong> occurred selectively without side reaction at the cyclopropane moiety. The polymerizations were highly controlled and chemoselective owing to the lack of cyclopropane coordination to the active polymerization Ti species. The PPM of poly(<strong>1</strong>-<em>co</em>-1-octene) via the protic acid-catalyzed ring-opening reaction of the cyclopropane introduced aromatic, acyloxyl, and alkoxy groups in high incorporation ratios without cross-linking reactions. Thus, this work demonstrates a promising procedure for the modification of cyclic olefin copolymers using specific cyclopropane reactivity.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"22 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143044391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Highly efficient synthesis of random isobutylene/alkenyl styrene copolymers with pendant vinyl groups via cationic polymerization for versatile functionalization
IF 4.6 2区 化学
Polymer Chemistry Pub Date : 2025-01-27 DOI: 10.1039/d4py01242a
He-Ying Wang, Feng-Yu Zhang, Si-Hao Li, Zi-Yang Song, Yang Wang, Yi-Xian Wu
{"title":"Highly efficient synthesis of random isobutylene/alkenyl styrene copolymers with pendant vinyl groups via cationic polymerization for versatile functionalization","authors":"He-Ying Wang, Feng-Yu Zhang, Si-Hao Li, Zi-Yang Song, Yang Wang, Yi-Xian Wu","doi":"10.1039/d4py01242a","DOIUrl":"https://doi.org/10.1039/d4py01242a","url":null,"abstract":"The controlled/living cationic copolymerizations of isobutylene (IB) with alkenyl styrenes including 4-allylstyrene (AS), <em>p</em>-(3-butenyl)-styrene (BS) and <em>p</em>-(5-hexenyl)-styrene (HS) were carried out in <em>n</em>-hexane/CH<small><sub>2</sub></small>Cl<small><sub>2</sub></small> (6/4 v/v) at −80 °C using a <em>t</em>-BuCl/FeCl<small><sub>3</sub></small>/iPrOH initiating system. The random copolymers of IB with AS, BS or HS could be obtained without crosslinking and the contents of AS units in the copolymers linearly increased from 0.71 mol% to 14.23 mol% with an increase in the feed ratio of AS. The monomer reactivity ratios (<em>r</em>) were determined to be <em>r</em><small><sub>AS</sub></small> = 4.16 and <em>r</em><small><sub>IB</sub></small> = 1.66 by the Fineman–Ross method, respectively. The livingness of cationic copolymerization of IB with AS was confirmed by All Monomer In (AMI) and Incremental Monomer Addition (IMA) techniques at −80 °C. The yields, <em>M</em><small><sub>n</sub></small> and <em>M</em><small><sub>w</sub></small>/<em>M</em><small><sub>n</sub></small> of the resulting copolymers decreased with increasing polymerization temperature (<em>T</em><small><sub>p</sub></small>) and the apparent activation energy (<em>E</em><small><sub>a</sub></small>) depended on <em>T</em><small><sub>p</sub></small>. The pendant vinyl groups in the above poly(IB-<em>co</em>-AS) copolymers can be completely converted into hydroxyl groups, carboxyl groups or epoxy groups <em>via</em> hydroboration/oxidation, thiol–ene click reaction or epoxidation. The hydrophilicity on the film surface of functionalized copolymers with hydroxyl, carboxyl or epoxy pendant groups could be improved by introduction of the functional groups and the water contact angle (WCA) of poly(IB-<em>co</em>-AS) with epoxy pendant groups decreased from 134.9° to 78.7° upon increasing the molar content of epoxy groups from 0 to 3.99%. Therefore, the random isobutylene/alkenyl styrene copolymers containing plentiful pendant vinyl groups and versatile polar groups would have potential applications in highly reactive elastomers, adhesives and amphiphilic materials with inorganic fillers.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"75 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143044620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Poly(β-hydroxyalkanoate) / polymethacrylate self-assembled architectures by ring-opening polymerization (ROP) / reversible addition-fragmentation chain-transfer (RAFT) polymerization and polymerization-induced self-assembly (PISA)
IF 4.6 2区 化学
Polymer Chemistry Pub Date : 2025-01-27 DOI: 10.1039/d4py01447b
Julien Rosselgong, Ali Dhaini, Manon Rochedy, Lourdes Monica Bravo Anaya, Jean-Francois Carpentier, Sophie M Guillaume
{"title":"Poly(β-hydroxyalkanoate) / polymethacrylate self-assembled architectures by ring-opening polymerization (ROP) / reversible addition-fragmentation chain-transfer (RAFT) polymerization and polymerization-induced self-assembly (PISA)","authors":"Julien Rosselgong, Ali Dhaini, Manon Rochedy, Lourdes Monica Bravo Anaya, Jean-Francois Carpentier, Sophie M Guillaume","doi":"10.1039/d4py01447b","DOIUrl":"https://doi.org/10.1039/d4py01447b","url":null,"abstract":"Self-assembled poly(β-hydroxyalkanoate) (PHA)-based block copolymers are attractive materials for biomedical applications due to the biocompatibility and (bio)degradability of the PHA segment. Herein, we report the synthesis and formation of self-assemblies based on PHAs: namely, poly(3-hydroxybutyrate) (PHB) was prepared by ring-opening polymerization (ROP) of racemic β-butyrolactone (rac-β-BL) using a discrete yttrium-based catalyst in the presence of a hydroxy-terminated trithiocarbonate (TTC-OH) as initiator. The resulting TTC end-capped PHB prepolymer next promoted the controlled reversible addition-fragmentation chain-transfer (RAFT) polymerization of 2-hydroxy ethyl methacrylate (HEMA). When performed in THF, in which the initial solvophilic PHB-TTC segment and HEMA monomer are both fully soluble, this second step resulted in a polymerization-induced self-assembly (PISA) leading to the formation of nanoparticles, as the solvophobic PHEMA precipitated in the dispersed medium. The effective extension of the PHB block by a PHEMA segment, as evidenced by SEC and NMR analyses, highlighted the efficiency of the PHB-TTC macro-RAFT agent. This ROP/RAFT/PISA strategy revealed successful at various polyester (DP = 45-90) and polymethacrylate (DP = 200-500) block lengths. The size, polydispersity index (PDI) and morphology of the resulting self-assembled PHBx-b-PHEMAy particles were assessed by dynamic light scattering (DLS) measurements, transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS). Depending on both segments chain-lengths, DLS enabled identifying particles in suspension having hydrodynamic diameters (DH) varying from 56 to 194 nm, with narrow polydispersity index, i.e. PDI &lt; 0.140. SAXS measurements and TEM observations revealed vesicles morphology for specific PHBx-b-PHEMAy samples presenting apparent diameters ranging from 134 to 316 nm. These morphologies support the successful copolymerization through a PISA process, first reported herein for the elaboration of PHA-based objects that may be valuable nano-vehicles of active ingredients for biomedical applications.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"77 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143044629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structure-Property Relationships of Ionic Poly(ethylene terephthalate) (PET): Effect of Ion Content and Species
IF 4.6 2区 化学
Polymer Chemistry Pub Date : 2025-01-24 DOI: 10.1039/d4py01482k
Jia-Ming Song, Xue-Shuai Wang, Junyu Li, Yi Liu, Liuchun Zheng
{"title":"Structure-Property Relationships of Ionic Poly(ethylene terephthalate) (PET): Effect of Ion Content and Species","authors":"Jia-Ming Song, Xue-Shuai Wang, Junyu Li, Yi Liu, Liuchun Zheng","doi":"10.1039/d4py01482k","DOIUrl":"https://doi.org/10.1039/d4py01482k","url":null,"abstract":"The functionalization of poly(ethylene terephthalate) (PET) is potential to expand applications of PET, particularly in high-value-added fields. To address the limitations of low ionic content of traditional anionic PET, this study employs sodium dimethyl isophthalate-5-sulfonate (SIPM) as the ionic monomer, and the copolymer was synthesized by transesterification and polycondensation. Ethylene glycol (EG) or butanediol (BDO) was applied to react with SIPM to obtain different ionic types of SIPE or SIPB. The ionic monomers are introduced into the PET macromolecular chains by the reaction between dimethyl terephthalate (DMT), EG, and SIPE or SIPB, and for the first time, the effect of ion types and contents on PET on properties was systematically studied. The incorporation of ionic groups led to a notable enhancement in mechanical, thermal, and hydrophilic properties of PET ionomers. The introduction of SIPB effectively improves the elongation at break and impact strength of PET, while the incorporation of SIPE substantially enhances the tensile and flexural strength of PET. Furthermore, an increase in ion content evidently improves hydrophilicity of the PET ionomer, with maximum water absorption of 30% and lowest water contact angle of 67°. With the introduction of the ion group, the macromolecular chain's regularity is disrupted, and the crystallinity of PET ionomers is reduced, which is promising to increase its transparency. Consequently, PET exhibits great potential to be applied in packaging materials, textile industry, and optical field.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"74 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143026919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimisation of azide-alkyne click reactions of polyacrylates using online monitoring and flow chemistry
IF 4.6 2区 化学
Polymer Chemistry Pub Date : 2025-01-24 DOI: 10.1039/d4py00984c
David M Haddleton, Despina Coursari, Spyridon Efstathiou, Lucas Al-Shok, Mia Hall, Ahmed M. Eissa, Evelina Liarou
{"title":"Optimisation of azide-alkyne click reactions of polyacrylates using online monitoring and flow chemistry","authors":"David M Haddleton, Despina Coursari, Spyridon Efstathiou, Lucas Al-Shok, Mia Hall, Ahmed M. Eissa, Evelina Liarou","doi":"10.1039/d4py00984c","DOIUrl":"https://doi.org/10.1039/d4py00984c","url":null,"abstract":"Herein, the online and inline 1H-NMR monitoring of azide-alkyne click reactions of polymers is investigated. The effect of the reaction solvent, ligand and temperature were investigated on small “model” molecules. Azidopropanol and 3-azidopropyl-2-bromoisobutyrate were used as the azide-containing molecules, whereas propargyl alcohol was chosen as the alkyne reactant. The optimal conditions were found to be dimethylsulfoxide (DMSO) as solvent with 2, 2’ bipyridine as ligand, which were subsequently employed in the modification of different azide-functionalised polyacrylates with propargyl alcohol. From this, poly(methyl acrylate) was chosen to investigate the more complex conjugation of an alkyne monosaccharide. Finally, the “click” reaction was performed in flow leading to a successful modification in less than 1 hour.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"19 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143027102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Polycondensation of L-Lactic Acid: A Deeper Look into Solid State Polycondensation l -乳酸的缩聚:固态缩聚的深入研究
IF 4.6 2区 化学
Polymer Chemistry Pub Date : 2025-01-23 DOI: 10.1039/d4py01191k
Hans R. Kricheldorf, Steffen M. Weidner, Felix Scheliga
{"title":"Polycondensation of L-Lactic Acid: A Deeper Look into Solid State Polycondensation","authors":"Hans R. Kricheldorf, Steffen M. Weidner, Felix Scheliga","doi":"10.1039/d4py01191k","DOIUrl":"https://doi.org/10.1039/d4py01191k","url":null,"abstract":"L-lactic acid (LA) was condensed in the presence of SnCl2 or 4-toluenesulfonic acid (TSA) at 140 °C, and chain growth without cyclization was observed. In addition, poly(l-lactic acid)s (PLAs) with a degree of polymerization (DP) of 25, 50 or 100 were prepared by water-initiated ring-opening polymerization (ROP). These PLAs were annealed in the solid state at 140 °C and 160 °C in the presence of tin (II) 2-ethylhexanoate (SnOct2), tin (II) chloride (SnCl2) or toluene sulfonic acid (TSA). The changes in the molecular weight distribution and in the topology were characterized by means of matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry and gel permeation chromatography (GPC). With increasing time, fewer side reactions caused higher molecular weights and increasing fractions of cyclic polylactides (cPLA) were obtained. Their “saw tooth” pattern in the MALDI-TOF mass spectra indicated the formation of extended ring crystallites in the solid state. TSA was the most active catalyst and caused fewer side reactions than SnCl2, which was the least reactive catalyst. Acetylation of the CH-OH end groups hindered polycondensation and prevented the formation of cPLAs. Reaction mechanisms will be discussed.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"32 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and applications of conjugated main-chain charged polyelectrolytes 共轭主链带电聚电解质的合成及应用
IF 4.6 2区 化学
Polymer Chemistry Pub Date : 2025-01-23 DOI: 10.1039/d4py01405g
Hai-Yan Huang, Dongyang Fan, Dong Wang, Ting Han, Ben Zhong Tang
{"title":"Synthesis and applications of conjugated main-chain charged polyelectrolytes","authors":"Hai-Yan Huang, Dongyang Fan, Dong Wang, Ting Han, Ben Zhong Tang","doi":"10.1039/d4py01405g","DOIUrl":"https://doi.org/10.1039/d4py01405g","url":null,"abstract":"Conjugated main-chain charged polyelectrolytes (CMCPs) represent an important class of functional polymeric materials possessing distinctive structures and properties. By merging the advantages of conjugated polymers with the charge modulation capabilities of electrolytes, CMCPs have found wide applications in different fields and have garnered considerable interest across multiple disciplines such as chemistry, chemical engineering, materials science, and biomedicine. In this review, we emphasize the progress on the synthetic strategies of different types of CMCPs, including pyridinium-containing CMCPs, imidazolium-containing CMCPs, and other related structures. Furthermore, the applications of CMCPs in antimicrobial reagents, fluorescence sensing, fluorescence imaging, cancer cell killing, and fiber preparation are also introduced. To provide insights for the development of novel CMCPs with advanced functionalities, the current challenges and future prospects in this field are addressed at the end of this review.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"12 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Giant Molecules with Varying Geometric Feature by Programming the Unit Sequence 具有不同几何特征的大分子单元序列的编程
IF 4.6 2区 化学
Polymer Chemistry Pub Date : 2025-01-23 DOI: 10.1039/d4py01274g
Ze Yang, Zhong-Guo Liu, Shuai Wang, Gang Li, Xue-Hui Dong
{"title":"Giant Molecules with Varying Geometric Feature by Programming the Unit Sequence","authors":"Ze Yang, Zhong-Guo Liu, Shuai Wang, Gang Li, Xue-Hui Dong","doi":"10.1039/d4py01274g","DOIUrl":"https://doi.org/10.1039/d4py01274g","url":null,"abstract":"In this study, we modularly prepared a library of giant molecules using molecular nanoparticles - polyhedral oligomeric silsesquioxane (POSS) - as repeat units, with precise control over composition, regio-configuration, and sequence. Benefiting from the enlarged unit size, the assembly behaviors of these giant molecules are found to be sensitive to subtle structural variations. The precise chemical structure rules out molecular “defects”, serves as an ideal platform to resolve minute differences. The regio-configuration exhibits a direct impact on the spatial arrangement of the neighboring POSS units, resulting in distinct phase behaviors. Molecular geometry, which stems from the monomer sequence, plays a crucial role in the self-assembly process. Simply changing the position of the alkyl ligands on the peripheries of particles generates substantial differences in the period spacing and phase stability, and in some cases even trigger a phase transition toward distinct structures.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"33 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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