Journal of Polymer Science最新文献

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Tuning the Thermal Properties of Polymethacrylates With Bicyclobutane Monomers 用双环丁烷单体调节聚甲基丙烯酸酯的热性能
IF 3.9 3区 化学
Journal of Polymer Science Pub Date : 2025-04-16 DOI: 10.1002/pol.20250307
Sewon Oh, Erin E. Stache
{"title":"Tuning the Thermal Properties of Polymethacrylates With Bicyclobutane Monomers","authors":"Sewon Oh,&nbsp;Erin E. Stache","doi":"10.1002/pol.20250307","DOIUrl":"https://doi.org/10.1002/pol.20250307","url":null,"abstract":"<p>Developing novel yet recyclable plastics is necessary as society advances and increases reliance on materials. Using new classes of monomers enables the synthesis of unprecedented polymers for new applications. Here, we report copolymerization with bicyclo[1.1.0]butane monomers to make polymers with strained backbone units and analyze the thermal property changes based on the % incorporation of strained monomers. We discover that even low incorporation (5%–20%) of methyl bicyclobutane-1-carboxylate (MBC) to poly(methyl methacrylate) (PMMA) increases degradation temperature while decreasing glass transition temperature. Efficient depolymerization is achieved for copolymers with 20% or fewer MBC units under photothermal conversion. Other comonomers (2-methoxyethyl methacrylate and oligo(ethylene glycol) monomethyl ethyl methacrylate) are also copolymerized with MBC, and we assess the changes in their thermal properties, including lower critical solution temperatures (LCSTs). Our work expands the understanding of how the strained MBC monomer plays a role in copolymerization, thermal characteristics, and depolymerization of copolymers.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 10","pages":"2333-2340"},"PeriodicalIF":3.9,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20250307","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Specific Selectivity of Enzyme-Model Catalyst for a Direct Synthesis of Poly(ethynyl-substituted arylene oxide) via Oxidative Polymerization 氧化聚合直接合成聚乙基取代环氧芳烯酶型催化剂的选择性研究
IF 3.9 3区 化学
Journal of Polymer Science Pub Date : 2025-04-09 DOI: 10.1002/pol.20241089
Akiyuki Nakano, Takahiro Oshima, Vivek S. Raut, Naoki Asao, Masashi Nakamura, Kan Wakamatsu, Hideyuki Higashimura
{"title":"Specific Selectivity of Enzyme-Model Catalyst for a Direct Synthesis of Poly(ethynyl-substituted arylene oxide) via Oxidative Polymerization","authors":"Akiyuki Nakano,&nbsp;Takahiro Oshima,&nbsp;Vivek S. Raut,&nbsp;Naoki Asao,&nbsp;Masashi Nakamura,&nbsp;Kan Wakamatsu,&nbsp;Hideyuki Higashimura","doi":"10.1002/pol.20241089","DOIUrl":"https://doi.org/10.1002/pol.20241089","url":null,"abstract":"<div>\u0000 \u0000 <p>Oxidative polymerization of 2-(3-ethynylphenyl)phenol (EPP) is performed using an enzyme-model Cu catalyst with a triazacyclononane, and then, a C<span></span>O coupling polymer is obtained while completely inhibiting homo-coupling of the ethynyl group, which is called Glaser coupling. The produced polymer exhibits highly thermal properties and good solvent resistance through thermal crosslinking of the ethynyl group. In contrast, the oxidation of EPP using a conventional Cu catalyst with an ethylenediamine gives a diacetylene compound, and in the polymerization of 2-ethynylphenol, both catalysts afford polymers with diacetylene structures. The reason for the exclusive C<span></span>O coupling of the enzyme-model catalyst in the polymerization of EPP is examined using DFT calculations, and as a result, the prohibition of the Glaser coupling would be due to no deprotonation of the ethynyl species to form the acetylide complex. The present polymer resulting from EPP is expected to be a fluorine-free insulating material in high-speed wireless communication systems.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 10","pages":"2299-2307"},"PeriodicalIF":3.9,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Combining Crystallization- and Stereocomplex-Driven Self-Assembly for the Selective Loading of Patchy Worm-Like Core-Crystalline Micelles 结合结晶和立体配合物驱动的自组装用于片状蠕虫状核晶胶束的选择性加载
IF 3.9 3区 化学
Journal of Polymer Science Pub Date : 2025-04-09 DOI: 10.1002/pol.20250122
Roman Schaller, Emma Fuchs, Lisa Maria Günther, Holger Schmalz
{"title":"Combining Crystallization- and Stereocomplex-Driven Self-Assembly for the Selective Loading of Patchy Worm-Like Core-Crystalline Micelles","authors":"Roman Schaller,&nbsp;Emma Fuchs,&nbsp;Lisa Maria Günther,&nbsp;Holger Schmalz","doi":"10.1002/pol.20250122","DOIUrl":"https://doi.org/10.1002/pol.20250122","url":null,"abstract":"<p>Micelles with a patch-like microphase-separated (patchy) corona are of increasing interest as their unique corona structure opens various applications, for example, as emulsion stabilizers, blend compatibilizers, nanoparticle templates for catalysis, or hierarchical self-assembly. Crystallization-driven self-assembly (CDSA) is an efficient method for the preparation of patchy core-crystalline micelles (CCMs). However, so far studies mainly focus on CCMs with amorphous corona blocks. In this work, a combination of CDSA with stereocomplex-driven self-assembly (SCDSA) is employed to selectively load stereoregular poly(<i>L</i>-lactide) patches in the corona of worm-like CCMs (wCCMs) formed by a double-crystalline polystyrene-<i>block</i>-polyethylene-<i>block</i>-poly(<i>L</i>-lactide) (PS-<i>b</i>-PE-<i>b</i>-P<i>L</i>LA) triblock terpolymer. Well-defined wCCMs with an amorphous patchy PS/P<i>L</i>LA corona are formed by CDSA in a good solvent for the PS and P<i>L</i>LA blocks, that is, P<i>L</i>LA crystallization is hindered within the patches. However, decreasing the solvent quality for the P<i>L</i>LA block can induce crystallization within the partially collapsed P<i>L</i>LA patches, although the degree of crystallinity is comparably low (&lt; 5%). SCDSA of the patchy wCCMs with an enantiomeric poly(<i>D</i>-lactide) homopolymer is utilized to selectively form polylactide stereocomplexes within the patchy corona and, furthermore, to introduce a fluorescence dye, allowing the use of fluorescence correlation spectroscopy to study stereocomplex formation directly in dispersion.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 10","pages":"2319-2332"},"PeriodicalIF":3.9,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20250122","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Chemically Recyclable, Hydroxycinnamic Acid-Derived Semi-Aromatic Polycarbonates 化学可回收,羟基肉桂酸衍生的半芳香族聚碳酸酯
IF 3.9 3区 化学
Journal of Polymer Science Pub Date : 2025-04-09 DOI: 10.1002/pol.20250028
Ghezae Tekleab, Pascal Alexander Schouwink, Harm-Anton Klok
{"title":"Chemically Recyclable, Hydroxycinnamic Acid-Derived Semi-Aromatic Polycarbonates","authors":"Ghezae Tekleab,&nbsp;Pascal Alexander Schouwink,&nbsp;Harm-Anton Klok","doi":"10.1002/pol.20250028","DOIUrl":"https://doi.org/10.1002/pol.20250028","url":null,"abstract":"<p>Polycarbonate polymers find widespread use for a variety of applications. Driven by the need to transition away from fossil-based resources, there is increasing interest in exploring bio-based monomers for the synthesis of polycarbonates. One interesting class of molecules that can be isolated from a variety of biological resources, including lignin, are hydroxycinnamic acids. This paper reports the synthesis of a library of aromatic diols using <i>p</i>-coumaric acid, ferulic acid, and sinapic acid as starting materials. Using dimethyl carbonate, these diols can be polymerized to generate a variety of semi-aromatic polycarbonate homo- and copolymers. These polycarbonates can be depolymerized via an organocatalyzed process to afford the starting diols in essentially quantitative yield. The monomers obtained from this depolymerization process could subsequently be repolymerized, with no purification needed, to regenerate the original polymer with essentially identical molecular weight, providing a pathway to the chemical recycling of these materials.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 10","pages":"2308-2318"},"PeriodicalIF":3.9,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20250028","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Synthesis of Helical Aromatic Polyazomethines Consisting of Axially Dissymmetric Segments in the Main Chain 由主链轴向不对称节段组成的螺旋芳香聚亚胺的合成
IF 3.9 3区 化学
Journal of Polymer Science Pub Date : 2025-04-08 DOI: 10.1002/pol.20250097
Mitsuhiro Hirata, Yutaka Okuyama, Kosei Takenouchi, Go Matsuba, Makoto Takeishi
{"title":"Synthesis of Helical Aromatic Polyazomethines Consisting of Axially Dissymmetric Segments in the Main Chain","authors":"Mitsuhiro Hirata,&nbsp;Yutaka Okuyama,&nbsp;Kosei Takenouchi,&nbsp;Go Matsuba,&nbsp;Makoto Takeishi","doi":"10.1002/pol.20250097","DOIUrl":"https://doi.org/10.1002/pol.20250097","url":null,"abstract":"<div>\u0000 \u0000 <p>Aromatic polyazomethines were prepared by the polycondensation of axially dissymmetric aromatic diamines and aromatic dialdehydes. The polycondensation of axially dissymmetric (<i>R</i>)- or (<i>S</i>)-binaphthyl-2,2′-diamines and aromatic dialdehydes in DMF at 100°C afforded wholly aromatic polyazomethines (<i>M</i>\u0000 <sub>n</sub> = 4600–7600), which are soluble in common solvents such as tetrahydrofuran. The combination of (<i>R</i>)- or (<i>S</i>)-6,6′-diamino-2,2′-dimethylbiphenyls and aromatic dialdehydes also yielded soluble wholly aromatic polyazomethines (<i>M</i>\u0000 <sub>n</sub> = 5500–12,000). Computational studies showed that the stable conformations of the polymers have one-handed helical structures. The chiroptical properties of the obtained polyazomethines were investigated based on circular dichroism (CD) spectra.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 10","pages":"2291-2298"},"PeriodicalIF":3.9,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143949804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Real-Time Quantification of Polyethylene Crystallinity via In Situ Mid- and Near-Infrared Correlation Spectroscopy: Melting and Dissolution 通过原位中红外和近红外相关光谱实时定量聚乙烯结晶度:熔化和溶解
IF 3.9 3区 化学
Journal of Polymer Science Pub Date : 2025-04-07 DOI: 10.1002/pol.20250207
Nicholas Stavinski, Ali Ghasemi, Luis J. Bruno, Carmen L. Sánchez Delgado, Marina Tsianou, Paschalis Alexandridis, Luis Velarde
{"title":"Real-Time Quantification of Polyethylene Crystallinity via In Situ Mid- and Near-Infrared Correlation Spectroscopy: Melting and Dissolution","authors":"Nicholas Stavinski,&nbsp;Ali Ghasemi,&nbsp;Luis J. Bruno,&nbsp;Carmen L. Sánchez Delgado,&nbsp;Marina Tsianou,&nbsp;Paschalis Alexandridis,&nbsp;Luis Velarde","doi":"10.1002/pol.20250207","DOIUrl":"https://doi.org/10.1002/pol.20250207","url":null,"abstract":"<div>\u0000 \u0000 <p>Elucidating the crystalline-amorphous interface during decrystallization processes in semi-crystalline polyethylene (PE) is crucial for the advancement of polymer theory and plastic-to-plastic recycling technologies. In this study, we carried out an in-depth investigation of PE thin films undergoing melting or dissolution using a temperature-controlled liquid flow-cell experimental setup which provided in situ mid-infrared (MIR, 4000–700 cm<sup>−1</sup>) and near-infrared (NIR, 6000–4000 cm<sup>−1</sup>) spectra in real time. The spectroscopic results yielded molecular-level information regarding PE decrystallization and chain disentanglement via fundamental vibrations, combination bands, and overtones which were correlated using hetero-spectral two-dimensional correlation spectroscopy (2D-COS). A quantitative procedure for the calculation of PE degree of crystallinity was developed to track transformations of crystalline domains during melting and dissolution. This semi-empirical model achieved a strong linear correlation of at least +0.93 in four spectral regions: 750–700 cm<sup>−1</sup>, 1500–1400 cm<sup>−1</sup>, 3000–2800 cm<sup>−1</sup>, and 4400–4200 cm<sup>−1</sup>. This analysis revealed important spectral trends about the interfacial solvation environment during these processes. Lastly, the time evolution of the unraveling, terminal methyl (<span></span>CH<sub>3</sub>) groups of PE cilia was examined in relation to the decrystallization mechanism of PE. The insights obtained from this study advance the fundamental understanding necessary for developing new depolymerization and dissolution-precipitation recycling strategies.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 10","pages":"2248-2265"},"PeriodicalIF":3.9,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Tailoring Polysulfone Membranes With Surface-Modified Silica for Efficient Separation of Oily Water 用表面改性二氧化硅裁剪聚砜膜用于油水的有效分离
IF 3.9 3区 化学
Journal of Polymer Science Pub Date : 2025-04-07 DOI: 10.1002/pol.20241048
Tausif Ahmad, Chandan Guria, Muhammad Mubashir, Salman Qadir, Arshad Hussaine
{"title":"Tailoring Polysulfone Membranes With Surface-Modified Silica for Efficient Separation of Oily Water","authors":"Tausif Ahmad,&nbsp;Chandan Guria,&nbsp;Muhammad Mubashir,&nbsp;Salman Qadir,&nbsp;Arshad Hussaine","doi":"10.1002/pol.20241048","DOIUrl":"https://doi.org/10.1002/pol.20241048","url":null,"abstract":"<div>\u0000 \u0000 <p>The aim of the work was to understand the influence of acrylamide grafted silica (Am-g-silica) on the morphology and filtration efficiency of polysulfone (PSf) based membranes. The silica is modified using a surface-initiated atom transfer radical polymerization (SI-ATRP) technique using acrylamide. Different characterization techniques are used to study membrane properties and filtration capability, including FE-SEM, contact angle, porosity determination, anti-fouling characteristic assessment, and filtering experiments with pure and oily water. The results indicate an enhancement of permeability of the PSf membrane with the incorporation of Am-g-silica. An improved permeate flux (168.16 ± 11.55 Lm<sup>−2</sup> h<sup>−1</sup>) and pure water flux (440.62 ± 23.11 Lm<sup>−2</sup> h<sup>−1</sup>) as well as oil rejection of more than 92.8% ± 0.45% was observed at the optimal composition of 8 wt. % Am-g-silica. These enhancements can be ascribed to the enhanced porosity (63.12%) and decreased contact angle (56.76°). In summary, PSf/Am-g-silica membranes demonstrate improved membrane performance, including higher water flux, oil permeation and rejection, and fouling resistance, making them a promising method for oily water treatment applications.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 10","pages":"2266-2277"},"PeriodicalIF":3.9,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Crystallization Behavior and Molecular Dynamics Simulation of Poly(Lactic Acid) Film Toughened by Poly(Ethylene Glycol)-Modified Carbon Dots 聚乙二醇改性碳点增韧聚乳酸薄膜的结晶行为及分子动力学模拟
IF 3.9 3区 化学
Journal of Polymer Science Pub Date : 2025-04-07 DOI: 10.1002/pol.20241174
Yumiao Ma, Weijun Zhen, Zhe Wang, Tengfei Shao
{"title":"Crystallization Behavior and Molecular Dynamics Simulation of Poly(Lactic Acid) Film Toughened by Poly(Ethylene Glycol)-Modified Carbon Dots","authors":"Yumiao Ma,&nbsp;Weijun Zhen,&nbsp;Zhe Wang,&nbsp;Tengfei Shao","doi":"10.1002/pol.20241174","DOIUrl":"https://doi.org/10.1002/pol.20241174","url":null,"abstract":"<div>\u0000 \u0000 <p>In order to improve the crystallization properties and toughness of PLA film, poly(ethylene glycol) (PEG)-modified carbon dots (CDs) were synthesized as nanofillers to achieve this goal. PEG-CDs were characterized by Fourier transform infrared spectrometer (FTIR), static contact angle measurement, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and thermogravimetric analyzer (TGA), and the results demonstrated that the PEG chains were successfully grafted onto the surface of CDs. PEG-CDs/PLA composite films were prepared by extrusion blow molding technology, and their mechanical properties, thermal stability, anti-aging performance, and water vapor barrier properties were investigated. The results showed that the elongation at break of PEG-CDs/PLA composite films (0.05 wt%) increased from 19.43% (for pure PLA film) to 107.75%, and the water vapor barrier properties, thermal stability, and anti-aging properties of PEG-CDs/PLA composite films were improved to varying degrees compared with those of pure PLA film. The rheological behavior analysis of the PEG-CDs/PLA composite film revealed that PEG-CDs had a plasticizing effect on PLA, which is one possible cause for the increased toughness of the PEG-CDs/PLA composite films over pure PLA film. Moreover, the results of the crystallization behavior proved that PEG-CDs could not only improve the crystallinity of PLA but also accelerate its crystallization rate. Molecular dynamics simulations confirmed the presence of strong interactions between PEG-CDs and PLA, thereby enhancing the overall performance of PLA films.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 10","pages":"2222-2236"},"PeriodicalIF":3.9,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Closed-Loop Recycling of Covalent Adaptable Network (CAN) Derived From Dopamine and Waste PET 多巴胺和废弃PET共价自适应网络(CAN)的闭环回收
IF 3.9 3区 化学
Journal of Polymer Science Pub Date : 2025-04-07 DOI: 10.1002/pol.20250313
Vatsalya Gupta, Ramkrishna Sarkar
{"title":"Closed-Loop Recycling of Covalent Adaptable Network (CAN) Derived From Dopamine and Waste PET","authors":"Vatsalya Gupta,&nbsp;Ramkrishna Sarkar","doi":"10.1002/pol.20250313","DOIUrl":"https://doi.org/10.1002/pol.20250313","url":null,"abstract":"<div>\u0000 \u0000 <p>Covalent adaptable networks (CANs) have established a unique paradigm for developing recyclable thermosets. However, the majority of the CANs are derived from non-renewable resources. Incorporating bio-based feedstock in the design of CANs would further enhance sustainability. To this end, this work introduces a strategy to construct a CAN from bio-based dopamine and plastic (PET) waste. The pursuit of novel molecules for the derivation of CAN motivated us to introduce dopamine in this report. The dopamine was transformed into a tetra-functional alcohol monomer, which resulted in CAN upon polymerization with pyromellitic dianhydride. The CAN exhibited appreciable thermal stability, noteworthy mechanical properties, and excellent chemical and solvent resistance. The catalyst-free reprocessing of the CAN was demonstrated. The viscoelastic behavior of the CAN was examined using rheological measurements. Finally, toward achieving the closed-loop circular economy, the CAN was chemically degraded, and the monomer was recovered in high yield (91%) and purity, allowing the remaking of CAN. Our exploration expands the scope of diverse bio-derived feedstock toward the synthesis of CANs. To the best of our knowledge, this is the first report that describes the derivation of reprocessable thermoset-like CAN from dopamine and waste plastic and their subsequent chemical recycling.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 10","pages":"2237-2247"},"PeriodicalIF":3.9,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Creative Soap-Free Emulsion Polymerization of Vinyl Chloride via Copolymerization With Vinyl Acetate and Maleamic Acid Ammonium Salt 醋酸乙烯-马来酸铵盐共聚氯乙烯的无皂乳液聚合研究
IF 3.9 3区 化学
Journal of Polymer Science Pub Date : 2025-04-07 DOI: 10.1002/pol.20250094
Lijun Fan, Yanbei Chen, Ye Jia, Xianhong Zhang, Wantai Yang
{"title":"Creative Soap-Free Emulsion Polymerization of Vinyl Chloride via Copolymerization With Vinyl Acetate and Maleamic Acid Ammonium Salt","authors":"Lijun Fan,&nbsp;Yanbei Chen,&nbsp;Ye Jia,&nbsp;Xianhong Zhang,&nbsp;Wantai Yang","doi":"10.1002/pol.20250094","DOIUrl":"https://doi.org/10.1002/pol.20250094","url":null,"abstract":"<div>\u0000 \u0000 <p>Soap-free emulsion polymerization has superiorities such as better stability, high purity, and being more environmentally friendly than conventional emulsion polymerization. Many soap-free emulsion polymerization systems have been reported on styrene and acrylate monomers, but rarely on vinyl chloride. In this work, we develop a soap-free emulsion polymerization system for poly(vinyl chloride) (PVC) based on the ternary copolymerization between vinyl chloride monomer (VCM), vinyl acetate (VAc), and maleamic acid ammonium salt (MAAS), which can eliminate the undesirable effects of emulsifiers and introduce functional groups on the surface of the PVC latexes. The soap-free emulsion polymerization is achieved successfully by employing MAAS as the hydrophilic unit and VAc as a bridging agent to tailor the reactivity and stability of the polymer latexes. Tuning the feed ratio of MAAS/VAc is the key point to achieve the present soap-free polymerization system. More interestingly, the introduction of a small amount of co-solvent such as ethanol in the soap-free emulsion polymerization system neither destabilizes the emulsion nor hinders the polymerization process; on the contrary, it can significantly improve the polymerization rate and conversion. This new polymerization system provides a broad prospect for high value-added application of PVC and provides supplementary value for the PVC polymerization methods.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 10","pages":"2278-2290"},"PeriodicalIF":3.9,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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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