Journal of Polymer Science Part A: Polymer Chemistry最新文献_第6页

Synthesis of sustainable sulfur-containing polycarbonates from xylose and carbonyl sulfide 以木糖和羰基硫化物为原料合成可持续含硫聚碳酸酯

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Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2023-06-07 DOI: 10.1002/pol.20230163

Qiang Chen, Wei Chen, Hui Zhou

引用次数: 0

Inside Cover 封面里

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Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2023-06-01 DOI: 10.1002/pol.20230303

引用次数: 0

Synthesis of trimethylolphosphine carbamate and its flame retardant application in cotton 氨基甲酸三甲基膦酯的合成及其在棉花上的阻燃应用

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Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2023-06-01 DOI: 10.1002/pol.20230165

Xueyan Ma, Bingqing Liu, Yongbing Hao, Xing Guo, Lixia Liu, Jia Wang, Shujun Chao, Linlin Shan, Xuefang Shang

引用次数: 0

Programmable polymer materials empowered by DNA nanotechnology 可编程高分子材料由DNA纳米技术授权

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Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2023-05-29 DOI: 10.1002/pol.20230160

Sarah K. Speed, Krishna Gupta, Yu-Hsuan Peng, Syuan Ku Hsiao, Elisha Krieg

{"title":"Programmable polymer materials empowered by DNA nanotechnology","authors":"Sarah K. Speed, Krishna Gupta, Yu-Hsuan Peng, Syuan Ku Hsiao, Elisha Krieg","doi":"10.1002/pol.20230160","DOIUrl":"https://doi.org/10.1002/pol.20230160","url":null,"abstract":"Over the past century, synthetic polymers have had a transformative impact on human life, replacing nature-derived materials in many areas. Yet, despite their many advantages, the structure and function of synthetic polymers still appear rudimentary compared to biological matter: cells use dynamic self-assembly to construct complex materials and operate sophisticated macromolecular devices. The field of DNA nanotechnology has demonstrated that synthetic DNA molecules can be programmed to undergo predictable self-assembly, offering unparalleled control over the formation and dynamic properties of artificial nanostructures. Intriguingly, the principles of DNA nanotechnology can be applied to the engineering of soft programmable materials, bringing the abilities of synthetic polymers closer to their biological counterparts. In this perspective, we discuss the unique features of DNA-functionalized polymer materials. We describe design principles that allow researchers to build complex supramolecular architectures with predictable and dynamically adjustable material properties. Finally, we highlight two key application areas where this biologically inspired material class offers particularly promising opportunities: (1) as dynamic matrices for 3D cell and organoid culture and (2) as smart materials for nucleic acid sequencing and pathogen detection.","PeriodicalId":199,"journal":{"name":"Journal of Polymer Science Part A: Polymer Chemistry","volume":"61 16","pages":"1713-1729"},"PeriodicalIF":2.702,"publicationDate":"2023-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20230160","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5867247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Investigating the structure–sensitivity relationship of photosensitive polyimide formulated by using a photobase generator 研究了用光碱发生器制备的光敏聚酰亚胺的结构-灵敏度关系

IF 2.702

Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2023-05-29 DOI: 10.1002/pol.20230230

En-Chi Chang, Ling-Ya Tseng, Yu Liu, Chun-Kai Chen, Chi-Ching Kuo, Mitsuru Ueda, Yan-Cheng Lin, Wen-Chang Chen

{"title":"Investigating the structure–sensitivity relationship of photosensitive polyimide formulated by using a photobase generator","authors":"En-Chi Chang, Ling-Ya Tseng, Yu Liu, Chun-Kai Chen, Chi-Ching Kuo, Mitsuru Ueda, Yan-Cheng Lin, Wen-Chang Chen","doi":"10.1002/pol.20230230","DOIUrl":"https://doi.org/10.1002/pol.20230230","url":null,"abstract":"Photosensitive polyimides (PSPIs) have been widely used in the buffer coating layer and insulation layer due to their excellent thermal and mechanical stability. In this work, a series of negative-type PSPIs based on poly(amic acid) (PAA) and a photobase generator (PBG) have been developed. Two diamines of 4,4′-oxydianiline (ODA), 3,3′-diaminodiphenyl sulfone (SDA), and four dianhydrides of pyromellitic dianhydride (PMDA), 3,3′,4,4′-biphenyltetracarboxylic dianhydride (BPDA), 4,4′-oxydiphthalic anhydride (ODPA) and cyclobutene-1,2,3,4-tetracarboxylic dianhydride (CBDA) are copolymerized to PAA through polyaddition, and the PAA is further thermally imidized to polyimide (PI). Through scrutinizing the structure–sensitivity relationship of these PIs, we find that the rigidity and transparency of the PAA/PI backbone play an important role in the sensitivity and contrast of PSPI. Accordingly, PSPI (SDA-ODPA), possessing high optical transparency and a low rigidity represented by the low glass transition point, is capable of providing good photosensitivity of 30 mJ/cm2, a high contrast of 2.46, and an excellent pattern resolution of 4 μm after optimizing the prebaking (100°C for 5 min), exposure dose (380 mJ/cm2), post-exposure baking (130°C for 7 min), and development parameters. This work provides the concept of structural design for negative-type PSPI in the microelectronic application.","PeriodicalId":199,"journal":{"name":"Journal of Polymer Science Part A: Polymer Chemistry","volume":"61 18","pages":"2122-2132"},"PeriodicalIF":2.702,"publicationDate":"2023-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"7052501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Molecularly imprinted polymer preparations for selective detection of C-reactive protein: Thermodynamic and kinetic studies 选择性检测c反应蛋白的分子印迹聚合物制备:热力学和动力学研究

IF 2.702

Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2023-05-28 DOI: 10.1002/pol.20230114

?i?dem ?ter, Abdulqader Tawfeeq

{"title":"Molecularly imprinted polymer preparations for selective detection of C-reactive protein: Thermodynamic and kinetic studies","authors":"?i?dem ?ter, Abdulqader Tawfeeq","doi":"10.1002/pol.20230114","DOIUrl":"https://doi.org/10.1002/pol.20230114","url":null,"abstract":"C-reactive protein (CRP) is a member of the pentraxin protein group. CRP is considered an acute-phase protein produced by the liver during inflammation in various diseases limited to pathogenic infections. It is very important that serum CRP concentration can be measured quickly, reliably and easily. Therefore, a three-dimensional crosslinked molecularly imprinted polymer (MIP) with selective recognition sites for CRP was synthesized (CRP-MIP) and characterization analyzes (scanning electron microscopy, Fourier transform infrared, and thermogravimetric analysis) were performed. The binding abilities of the synthesized polymers by adsorption of CRP in aqueous solution were evaluated in detail and compared with the abilities of an unprinted polymer (CRP-NIP) used as a reference. It was found that the MIP prepared by the printing effect selectively adsorbed the template molecule CRP. For this effect, the selectivity of MIP toward CRP and various positive acute-phase reactants such as α1-antitrypsin and α1-acid glycoprotein was evaluated and high selectivity toward CRP was obtained. CRP-MIP was used to remove CRP from crude human serum, and the recovery was up to 91%. Adsorption process of CRP from aqueous solutions on polymeric adsorbents; equilibrium was evaluated in terms of kinetic and thermodynamic conditions and the necessary parameters to describe the process were calculated under these conditions. Adsorption data: the pseudo-first order kinetic model, the pseudo-second order kinetic model, the Elovich kinetic model and the intraparticle diffusion model were studied and the thermodynamic parameters ΔG°, ΔH°, and ΔS° were calculated.","PeriodicalId":199,"journal":{"name":"Journal of Polymer Science Part A: Polymer Chemistry","volume":"61 17","pages":"2002-2009"},"PeriodicalIF":2.702,"publicationDate":"2023-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5868870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring materials for their need: Sustainable layered double hydroxide polymer composites 定制材料:可持续层状双氢氧化物聚合物复合材料

IF 2.702

Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2023-05-25 DOI: 10.1002/pol.20230025

Hester Oosthuizen, Louise Jones, Sajid Naseem, F. J. W. J. Labuschagne, Andreas Leuteritz

引用次数: 1

A wide range of poly(glycolic acid)-based di- and tri-block polyesters by a single organocatalyst: Synthesis and characterization 多种聚乙二醇酸基二嵌段和三嵌段聚酯的单一有机催化剂:合成和表征

IF 2.702

Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2023-05-24 DOI: 10.1002/pol.20230231

Huan Dong, Zhiheng Feng, Maolin Sun, Shihao Zhu, Jinghong Zhou, Wei Li, Jinxing Ye, Ruihua Cheng

{"title":"A wide range of poly(glycolic acid)-based di- and tri-block polyesters by a single organocatalyst: Synthesis and characterization","authors":"Huan Dong, Zhiheng Feng, Maolin Sun, Shihao Zhu, Jinghong Zhou, Wei Li, Jinxing Ye, Ruihua Cheng","doi":"10.1002/pol.20230231","DOIUrl":"https://doi.org/10.1002/pol.20230231","url":null,"abstract":"The ring-opening polymerization (ROP) of glycolide (GA), the copolymerization of GA with ε-caprolactone (ε-CL), and the terpolymerization of GA with ε-CL and lactide (LA) were studied over the cheap non-toxic metal-free organocatalyst tetrabutylammonium 2-(carbamyl)benzoate (TBACB). The catalyst with comparable catalytic activity to the comonomers afforded a series of well-defined PGA-based block polymers with ε-CL, LA monomers at high yields by varying feeding methods under bulk and solution conditions. The poly(ɛ-caprolactone-b-glycolic acid)s (PCGAs) and poly(ε-caprolactone-b-lactide-b-glycolide) (PCLGAs) with controllable chain segment composition were obtained by “one-pot” solution copolymerization in mixtures, or semi-batch copolymerization. Due to the high thermal stability of TBACB, the PCGA and PCLGA with high molecular weight (Mn = 6.9 and 10.0 kg mol−1) could also be obtained by bulk polymerization at 120 °C by sequential addition of ε-CL, (LA), and GA in a short time (<2.5 h). Compared to the polymers with similar compositions by different methods, the bulk polymerization showed more effective and higher molecular weight. The microstructure characterized by NMR showed highly ordered block polymers with defined chain segments. Two melting transitions (Tm) of PCGA suggested exclusively associated with PCL and PGA segmental chain in the product.","PeriodicalId":199,"journal":{"name":"Journal of Polymer Science Part A: Polymer Chemistry","volume":"61 17","pages":"1971-1983"},"PeriodicalIF":2.702,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5793000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effective charge of PNIPAM microgels determined by conductivity measurements 通过电导率测量确定PNIPAM微凝胶的有效电荷

IF 2.702

Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2023-05-23 DOI: 10.1002/pol.20230083

Adriana Campos-Ramírez, Antelmo Lozano-Martínez, Mónica Ledesma-Motolinía, Luis Fernando Rojas-Ochoa, Catalina Haro-Pérez

{"title":"Effective charge of PNIPAM microgels determined by conductivity measurements","authors":"Adriana Campos-Ramírez, Antelmo Lozano-Martínez, Mónica Ledesma-Motolinía, Luis Fernando Rojas-Ochoa, Catalina Haro-Pérez","doi":"10.1002/pol.20230083","DOIUrl":"https://doi.org/10.1002/pol.20230083","url":null,"abstract":"Understanding the effective charge of colloidal particles is crucial to control the stability and performance of a colloidal system. In particular, the electrostatic interaction potential between the particles determines the stability and thermodynamic properties of electrostatically charged colloidal dispersions. In the case of thermosensitive microgels, which are solvent and ions permeable particles, it is expected that the microgel's size and the number of ions within it are affected by temperature changes. This temperature-dependent microgel-solvent ion interchange regulates the microgel net charge and, consequently, the interaction potential. Here, a straightforward experimental method based on conductivity measurements is presented to determine the temperature dependence of the effective net charge of poly-N-isopropylacrylamide, PNIPAM, microgels under different salinity conditions. Our results show that the net charge of the microgel decreases with increasing temperature. Specifically, microgels reduce their net charge by around 40%, when the temperature is changed from 25 to 40 °C. This scenario could be explained by the entrance of counterions into the microgel after its collapse to partially neutralize the increase of the electrostatic repulsion due to the closer proximity among the charged groups present in the polymer particle.","PeriodicalId":199,"journal":{"name":"Journal of Polymer Science Part A: Polymer Chemistry","volume":"61 18","pages":"2115-2121"},"PeriodicalIF":2.702,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20230083","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"7000105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Linear viscoelasticity, nonlinear rheology and applications of polyethylene terephthalate vitrimers 聚对苯二甲酸乙二醇酯聚合体的线性粘弹性、非线性流变性及其应用

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Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2023-05-19 DOI: 10.1002/pol.20230169

Wei Zhang, Xiang Cui, Hongdong Zhang, Yuliang Yang, Ping Tang

{"title":"Linear viscoelasticity, nonlinear rheology and applications of polyethylene terephthalate vitrimers","authors":"Wei Zhang, Xiang Cui, Hongdong Zhang, Yuliang Yang, Ping Tang","doi":"10.1002/pol.20230169","DOIUrl":"https://doi.org/10.1002/pol.20230169","url":null,"abstract":"To enhance mechanical properties and processing performance of poly(ethylene terephthalate) (PET), it was upcycled to processable PET vitrimers with different crosslinking degrees by introducing dynamic network. The thermodynamics and linear viscoelasticity of PET vitrimers were explored by non-isothermal crystallization, isothermal sweep, frequency sweep and stress relaxation after incorporation of network. In particular, rheology experiments are sensitive to network structure and bond exchange mechanism in vitrimers. The pseudo-master curves show that relaxation processes are composed of three characteristic regions: Rouse-type relaxation of network strands, rubbery plateau and terminal relaxation of network, which is consistent with reversible gelation (RG) model. Two distinct (flow and chemical reaction) activation energies, are obtained by time–temperature superposition principle due to different temperature dependences of two relaxation behaviors. In addition, nonlinear rheology of PET vitrimers was investigated by extensional flow and start-up shear at the same Weissenberg number, and obvious strain hardening behavior were observed in all vitrimers. However, vitrimers with different crosslinking density exhibited distinct strain hardening trends as increase of extensional rate, corresponding to the ductility of material. On the basis of kinetics study, self-repairing and welding properties are further quantitatively explored for industrial applications.","PeriodicalId":199,"journal":{"name":"Journal of Polymer Science Part A: Polymer Chemistry","volume":"61 17","pages":"2010-2024"},"PeriodicalIF":2.702,"publicationDate":"2023-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5720072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0