Polymer Chemistry最新文献_第10页

Preparation and properties of stretchable low temperature resistant flexible epoxy resin curing agent† 可拉伸耐低温柔性环氧树脂固化剂的制备及性能研究

IF 4.1 2区化学

Polymer Chemistry Pub Date : 2025-05-27 DOI: 10.1039/d5py00254k

Hao Li , Qiang Liu , Yiming Du , Yanyan Liu , Wei Zhang , Xingyou Tian , Hua Wang

{"title":"Preparation and properties of stretchable low temperature resistant flexible epoxy resin curing agent†","authors":"Hao Li , Qiang Liu , Yiming Du , Yanyan Liu , Wei Zhang , Xingyou Tian , Hua Wang","doi":"10.1039/d5py00254k","DOIUrl":"10.1039/d5py00254k","url":null,"abstract":"<div><div>Two innovative molecular design strategies for epoxy curing agents to address the inherent brittleness and cryogenic limitations of conventional epoxy systems are introduced. A silane-modified curing agent (DETA-Si) and a flexible-chain-engineered curing agent (NBOn) were synthesized to achieve unprecedented mechanical–electrical–thermal synergies. The DETA-Si/EP composite demonstrates a record-breaking elongation at break of 125% (22× improvement over unmodified systems) while maintaining ultralow dielectric loss (tan δ < 0.04) and thermal stability (Td = 236 °C). The NBOn series, incorporating rigid benzene rings and tunable aliphatic chains, exhibits exceptional cryogenic resilience: 18% elongation at 298 K with >50% ductility retention after 24-hour immersion in liquid nitrogen (77 K). Conductive composites cured with EP/NBO10 show stable resistance (±5%) under 30-day cryogenic exposure. Free volume engineering, validated via WLF modeling, underpins the enhanced low-temperature performance. These advancements establish a paradigm for epoxy resins in flexible electronics operating under extreme conditions, such as flexible sensors and polar climate devices.</div></div>","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"16 24","pages":"Pages 2878-2886"},"PeriodicalIF":4.1,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144145870","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

Preparation of high-performance one-component polysulfide adhesives and modification by silane side chains† 高性能单组分聚硫胶粘剂的制备及硅烷侧链改性

IF 4.1 2区化学

Polymer Chemistry Pub Date : 2025-05-27 DOI: 10.1039/d5py00314h

Xu Han , Le Chang , Zeqian Wang , Feng Liu

{"title":"Preparation of high-performance one-component polysulfide adhesives and modification by silane side chains†","authors":"Xu Han , Le Chang , Zeqian Wang , Feng Liu","doi":"10.1039/d5py00314h","DOIUrl":"10.1039/d5py00314h","url":null,"abstract":"<div><div>One-component polysulfide adhesive preparation by diisocyanate-terminated prepolymers and 1,4-butanedithiol (BSO) can provide convenient moisture curing and excellent mechanical properties, but the formation of polysulfide-urea (–NHCOS–) groups causes some reduction in solvent resistance limiting their further application in aircraft fuel tank sealing. Introducing silane side chains into polysulfide adhesive systems is a viable approach to improving the solvent resistance. In this work, a series of novel silane side chain-modified one-component polysulfide adhesives were synthesized by using chain extenders in different proportions of BSO and (3-(2-aminoethyl)aminopropyl)trimethoxysilane (AEAPTMS). The results showed that a moderate amount of silane side chains and restricting the formation of Si–O–Si crosslinked networks can effectively enhance the elongation, interfacial interaction and solvent resistance. The optimal overall performance was obtained when the mass ratio of BSO and AEAPTMS was 7 : 1 (Si-OCPS3). Conversely, the oil and water absorption content after 21 days of Si-OCPS3 were 2.21 ± 0.06% and 2.81 ± 0.31%, being 20.50% and 43.57% lower than before modification (Si-OCPS0), respectively. Moreover, Si-OCPS3 exhibited higher tensile strength of 17.34 ± 0.66 MPa (oil) and 15.67 ± 0.32 MPa (water) than Si-OCPS0. We believe our paradigm can provide a feasible approach for designing high-performance one-component polysulfide adhesives.</div></div>","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"16 24","pages":"Pages 2887-2896"},"PeriodicalIF":4.1,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154088","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

Photothermally-driven cobalt catalysed atom transfer radical polymerisation enables isocyanide copolymer synthesis† 光热驱动的钴催化原子转移自由基聚合使异氰化物共聚物合成成为可能

IF 4.1 2区化学

Polymer Chemistry Pub Date : 2025-05-27 DOI: 10.1039/d5py00422e

Cristina Preston-Herrera , Erin E. Stache

引用次数: 0

Photo-curable resins based on poly(globalide) for 3D printing of resorbable scaffolds: synthesis, crosslinking and post-functionalization† 用于可吸收支架3D打印的光固化树脂：合成、交联和后功能化

IF 4.1 2区化学

Polymer Chemistry Pub Date : 2025-05-27 DOI: 10.1039/d5py00237k

Laura Oliveira Rebouças , Isabela Lima Autran Dourado , Giovanne Delechiave , Denisse Esther Mallaupoma Camarena , Sandra Van Vlierberghe , Luiz Henrique Catalani

{"title":"Photo-curable resins based on poly(globalide) for 3D printing of resorbable scaffolds: synthesis, crosslinking and post-functionalization†","authors":"Laura Oliveira Rebouças , Isabela Lima Autran Dourado , Giovanne Delechiave , Denisse Esther Mallaupoma Camarena , Sandra Van Vlierberghe , Luiz Henrique Catalani","doi":"10.1039/d5py00237k","DOIUrl":"10.1039/d5py00237k","url":null,"abstract":"<div><div>In recent years, significant efforts have been dedicated to developing photo-curable biomaterials for medical applications such as prosthetics, tissue engineering, and drug delivery. Although light-based 3D printing techniques enable the fabrication of resorbable medical devices with tailored properties, the shortage of suitable biodegradable materials still constrains their full potential. This study focused on producing resins based on poly(globalide) diacrylate for vat photo-polymerization 3D printing of biocompatible and biodegradable materials. By incorporating into the formulation unsaturated compounds such as poly(ethylene glycol) diacrylate, 1,10-decanediol diacrylate, N-vinylpyrrolidone, and N-isopropylacrylamide, the gelation kinetics, mechanical properties, and hydrolytic degradation rates were effectively modulated. Additionally, the successful post-functionalization of photo-crosslinked films with N-acetylcysteine through thiol–ene click-like chemistry demonstrates the material's potential for surface modification even after processing (photo-crosslinking). As part of the biological evaluation, the in vitro cytotoxicity of each material was tested according to the ISO 10993-5 standard. Finally, the suitability of one of the resins for vat photo-polymerization 3D printing was successfully validated with an LCD-based SLA printer.</div></div>","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"16 25","pages":"Pages 2962-2977"},"PeriodicalIF":4.1,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144145867","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

CO2-binding alcohols as potential candidates for poly(vinyl chloride) upcycling† 二氧化碳结合醇作为聚氯乙烯升级回收的潜在候选者

IF 4.1 2区化学

Polymer Chemistry Pub Date : 2025-05-27 DOI: 10.1039/d5py00350d

Juliette Delcorps , Emna Ben Ayed , Olivier Coulembier

{"title":"CO2-binding alcohols as potential candidates for poly(vinyl chloride) upcycling†","authors":"Juliette Delcorps , Emna Ben Ayed , Olivier Coulembier","doi":"10.1039/d5py00350d","DOIUrl":"10.1039/d5py00350d","url":null,"abstract":"<div><div>Despite the increasing global production of poly(vinyl chloride) (PVC), its recycling remains a major challenge, primarily due to its high chlorine content and limited compatibility with conventional recycling processes. This study explores the use of 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD)-based CO2-binding alcohols (CO2BALs) as nucleophiles for PVC functionalization, aiming to enhance its upcycling potential. The impact of solvent polarity, CO2BAL conversion, and reaction time on the substitution-to-elimination ratio was systematically investigated. Although the degree of substitution remained below 10 wt%, a promising SN2/E2 selectivity of 94/6 was achieved. The functionalized materials were characterized using 1H NMR, FT-IR, SEC, and TGA, confirming the successful grafting of carbonate moieties and highlighting thermal stability trends. While CO2BAL stabilization in polar solvents may limit reactivity, alternative approaches, such as flow chemistry, are currently under consideration to improve substitution efficiency. This work provides new insights into CO2-based strategies for PVC modification, bridging the gap between polymer upcycling and sustainable chemistry.</div></div>","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"16 25","pages":"Pages 2923-2932"},"PeriodicalIF":4.1,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144193208","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

1,3-Diether-2-methacrylates with glycerol skeletons: tunable resins for stereolithography 3D printing† 1,3-二醚-2-甲基丙烯酸酯与甘油骨架：可调树脂立体光刻3D打印

IF 4.1 2区化学

Polymer Chemistry Pub Date : 2025-05-27 DOI: 10.1039/d5py00198f

Zahra Sekhavat Pour , Pravin S. Shinde , Jun Wang , Cameron Woods , Seth Taylor , Sourav Chatterjee , Jason E. Bara

{"title":"1,3-Diether-2-methacrylates with glycerol skeletons: tunable resins for stereolithography 3D printing†","authors":"Zahra Sekhavat Pour , Pravin S. Shinde , Jun Wang , Cameron Woods , Seth Taylor , Sourav Chatterjee , Jason E. Bara","doi":"10.1039/d5py00198f","DOIUrl":"10.1039/d5py00198f","url":null,"abstract":"<div><div>The abundance of glycerol associated with biofuel production makes it an interesting substrate for a variety of new molecules. Our prior works have demonstrated the controlled and scalable synthesis of symmetric and asymmetric 1,3-diether-2-propanol compounds with a glycerol skeleton, which serve as versatile intermediates for further chemical modifications. Now we demonstrate that 1,3-diether-2-propanol compounds are useful building blocks to synthesize corresponding methacrylate monomers via Steglich esterification with methacrylic anhydride under mild catalytic conditions. The resulting methacrylate monomers were then successfully 3D printed as neat resins using a consumer-level printer. The thermal and mechanical properties of the printed materials were thoroughly investigated. The 3D-printed samples of 1,3-diethoxypropan-2-yl methacrylate (MAA-DEP) possessed good combinations of mechanical and thermal properties, with a tensile strength of 1.61 MPa, elongation at break of 143%, and a glass transition temperature (Tg) near 0 °C. A notable feature of the MAA-DEP monomer is its ability to dissolve polystyrene (PS). Thus, glycerol-based (meth)acrylate monomers present not only new molecules for 3D printing resins with tunable properties but also offer advancements in additive manufacturing by demonstrating how glycerol-derived acrylates also have solvating power to incorporate (waste) thermoplastics into SLA-printable formulations.</div></div>","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":"16 24","pages":"Pages 2840-2850"},"PeriodicalIF":4.1,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862442","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 depolymerization studies of biohybrid polycarbonates derived from terpenes† 萜烯类生物杂化聚碳酸酯的合成与解聚研究

IF 4.1 2区化学

Polymer Chemistry Pub Date : 2025-05-23 DOI: 10.1039/D5PY00285K

Thirusangumurugan Senthamarai, Enrico Lanaro, Jack Tinker, Antoine Buchard and Arjan W. Kleij

{"title":"Synthesis and depolymerization studies of biohybrid polycarbonates derived from terpenes†","authors":"Thirusangumurugan Senthamarai, Enrico Lanaro, Jack Tinker, Antoine Buchard and Arjan W. Kleij","doi":"10.1039/D5PY00285K","DOIUrl":"10.1039/D5PY00285K","url":null,"abstract":"We here report the catalytic ring-opening copolymerization of 2-menthene oxide (MO), a terpene-based monomer derived from L-menthol, and CO2 to provide poly(menthene carbonate), PMC, with a maximum molecular weight (Mn) of 10.2 kg mol−1. The terpene monomer MO can also be combined with both limonene oxide (LO) and CO2 in a formal terpolymerization process providing, depending on the monomer feed ratio, different types of biohybrid polycarbonates (PLMC) with different degrees of functionality. These terpolymerizations could be extended to the use of an acyclic terpene oxide and either MO/CO2 or LO/CO2, and a previously reported xylose-derived bicyclic oxetane. A selection of MO/LO based biohybrid PLMCs were conveniently depolymerized under TBD catalysis to regenerate the original mixture (>95%) of terpene oxides thereby providing a suitable starting point for the circular use of these biohybrid macromolecules.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":" 23","pages":" 2784-2790"},"PeriodicalIF":4.1,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/py/d5py00285k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144122718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Commercial organic Lewis-pair catalysts for efficient ring-opening polymerization of 1,2-butylene oxide† 高效开环聚合1,2-环氧丁烯的商用有机路易斯对催化剂

IF 4.1 2区化学

Polymer Chemistry Pub Date : 2025-05-20 DOI: 10.1039/D5PY00238A

Xianqiang Zeng, Chen Liu, Xue Wang, Yan Cao, Zheng Zheng, Peng He, Huiquan Li and Liguo Wang

{"title":"Commercial organic Lewis-pair catalysts for efficient ring-opening polymerization of 1,2-butylene oxide†","authors":"Xianqiang Zeng, Chen Liu, Xue Wang, Yan Cao, Zheng Zheng, Peng He, Huiquan Li and Liguo Wang","doi":"10.1039/D5PY00238A","DOIUrl":"10.1039/D5PY00238A","url":null,"abstract":"Poly(1,2-butylene oxide) (PBO) with ethyl side chains exhibits enhanced hydrophobicity, lower glass transition temperatures, and more nonpolar characteristics compared to poly(propylene oxide) (PPO). However, the presence of large steric hindrance from side groups of 1,2-butylene oxide (BO) makes its ring-opening polymerization (ROP) inefficient. We report a metal-free Lewis pair catalytic system comprising triethylborane (Et3B) and tetrabutylphosphonium bromide (TBPBr) that overcomes these limitations. This catalyst enables quantitative BO conversion under mild conditions (−20 °C), delivering high molecular weight PBO with a narrow polydispersity index (Mn = 37.2 kg mol−1, Đ = 1.07) through controlled chain propagation. Notably, the exceptional active hydrogen tolerance of the system allows precise synthesis of low molecular weight PBO polyols (Mn = 1.4–3.5 kg mol−1, Đ ≤ 1.05) using diols as initiators, with MALDI-TOF analysis confirming hydroxyl end-group fidelity. Furthermore, PBO polyols can be used directly in the synthesis of polyurethanes without the need for refining. We examined the influence of interactions between Lewis acids and Lewis bases on polymerization, and the results indicate that moderate interaction is critical for achieving optimal polymerization activity. This research demonstrates that a rational combination of a two-component Lewis pair catalyst offers a straightforward and practical approach for synthesizing polyethers with long side chains.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":" 23","pages":" 2742-2750"},"PeriodicalIF":4.1,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144097061","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

RGD peptide-mimicking random copolymers synthesized via rapid and controllable NCA polymerization to promote cell adhesion† 通过快速可控的NCA聚合合成模拟RGD肽的无规共聚物，促进细胞粘附

IF 4.1 2区化学

Polymer Chemistry Pub Date : 2025-05-20 DOI: 10.1039/D5PY00389J

Wenhui Dai, Yueming Wu, Kang Chen, Xinyi Xie, Luhang Chen, Minzhang Chen, Jiangzhou Wang, Dan Wang and Runhui Liu

引用次数: 0

Synthesis of electron-deficient polymers based on sulfur-bridged dithienylboranes as a building block† 以硫桥接二乙烯基硼烷为构筑块的缺电子聚合物的合成

IF 4.1 2区化学

Polymer Chemistry Pub Date : 2025-05-15 DOI: 10.1039/D5PY00203F

Yohei Adachi, Ryuji Matsuura, Mitsuru Sakabe, Hiroki Tobita, Hideki Murakami and Joji Ohshita

{"title":"Synthesis of electron-deficient polymers based on sulfur-bridged dithienylboranes as a building block†","authors":"Yohei Adachi, Ryuji Matsuura, Mitsuru Sakabe, Hiroki Tobita, Hideki Murakami and Joji Ohshita","doi":"10.1039/D5PY00203F","DOIUrl":"10.1039/D5PY00203F","url":null,"abstract":"π-Conjugated materials incorporating tricoordinate boron are known to possess relatively deep LUMO energy levels owing to the interaction between the empty p orbital of boron and the π* orbital. However, polymers with simple triarylborane structures do not have deep LUMO energy levels for applications in electron-accepting optoelectronic materials, such as n-type semiconductors. In this study, we synthesized new p–π* conjugated polymers by copolymerizing thiaborin units containing boron and sulfur atoms and diketopyrrolopyrrole (DPP), a well-known acceptor unit. The resulting polymers exhibited extended conjugation through the boron p orbital and strong absorption in the visible to near-infrared region. Although these polymers did not show n-type semiconductor behavior, they possessed deep LUMO energy levels lower than −3.6 eV. Furthermore, titration experiments using an amine base revealed that the polymer containing a sulfone unit has strong Lewis acidity, as evidenced by changes in the UV-vis absorption spectrum upon coordination of the base.","PeriodicalId":100,"journal":{"name":"Polymer Chemistry","volume":" 23","pages":" 2751-2756"},"PeriodicalIF":4.1,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/py/d5py00203f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143979424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0