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纳米压印调控PCL-b-PLLA受限结晶取向行为的研究 纳米压印调控PCL-b-PLLA受限结晶取向行为的研究
IF 1.9 4区 化学
高分子学报 Pub Date : 2019-01-01 DOI: 10.15496/PUBLIKATION-43481
Huan Ge, Fajun Zhang, Haiying Huang, T. He
{"title":"纳米压印调控PCL-b-PLLA受限结晶取向行为的研究","authors":"Huan Ge, Fajun Zhang, Haiying Huang, T. He","doi":"10.15496/PUBLIKATION-43481","DOIUrl":"https://doi.org/10.15496/PUBLIKATION-43481","url":null,"abstract":"","PeriodicalId":7133,"journal":{"name":"高分子学报","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81341113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
高分子研究中的一个知识问题——柔性链“从线团到小球”的构象变化 高分子研究中的一个知识问题——柔性链“从线团到小球”的构象变化
IF 1.9 4区 化学
高分子学报 Pub Date : 2017-01-09 DOI: 10.11777/J.ISSN1000-3304.2017.16362
叶晓东, 周科进, 吴奇
{"title":"高分子研究中的一个知识问题——柔性链“从线团到小球”的构象变化","authors":"叶晓东, 周科进, 吴奇","doi":"10.11777/J.ISSN1000-3304.2017.16362","DOIUrl":"https://doi.org/10.11777/J.ISSN1000-3304.2017.16362","url":null,"abstract":"一条大分子链由许多小分子通过共价键连接而成.正是这一\"连接\"导致了大分子一些独特的物理性质及相关问题.本文希望阐明的就是这样一个小分子物理中没有的知识问题：小分子在溶剂中仅有溶或不溶2个状态；而自60年代起，理论学家们就预言一条柔性大分子链在溶解的状态下，其构象随着溶剂性质变差可以从无规线团蜷缩成一个单链小球.为了证明这一构象变化，实验学家们从70年代末起进行了大量的研究，直至90年代初期仍未观察到稳定的单链蜷缩小球.实验上这一长期悬而未解的问题困惑着众多研究者.甚至有理论学家在1993年报道，当今的样品制备和实验手段无法观察到一个热力学稳定的单链蜷缩小球.中国钱人元先生和一些其他研究者自80年代末期也开始关注与单链有关的问题.我们实验室从1993年开始另辟蹊径，通过制备和采用窄分布的热敏性水溶性高分子超长链，终于在1995年利用激光光散射首次观察到理论上预测的\"线团到小球\"的构象变化.随后，又揭示了变化过程中存在着一个全新的\"融化球\"构象以及在单链蜷缩小球中并无理论上预计的额外链互穿和打结.从得到的稳定单链蜷缩小球出发，我们又首次在实验上研究了\"小球到线团\"的过程，意外地观察到其在准理想状态附近滞后于\"线团到小球\"的构象变化，并证明该滞后可归于链蜷缩过程中形成的额外链内氢键.最后，借用红外纳秒脉冲激光加热的方法研究了\"线团到小球\"的蜷缩动力学，并发现其包含了在单个高分子链上\"成核\"和\"粗化\"先后2个过程.其中，\"成核\"过程与链长无关.经过近20年的努力，我们终于基本解决了这一近代高分子物理研究中与知识有关的重要问题，揭示了与其相关的一些大分子特有的物理性质.","PeriodicalId":7133,"journal":{"name":"高分子学报","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2017-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83220272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
Synthesis and Self-assembly Behaviors of the ABC Miktoarm Star Terpolymer ABC型密臂星形共聚物的合成及其自组装行为
IF 1.9 4区 化学
高分子学报 Pub Date : 2014-06-20 DOI: 10.3724/SP.J.1105.2014.13396
Yang Bai, Xiaodong Fan, W. Tian, Hao Yao, W. Fan, Tingting Liu, J. Dang, Xiuzhong Zhu
{"title":"Synthesis and Self-assembly Behaviors of the ABC Miktoarm Star Terpolymer","authors":"Yang Bai, Xiaodong Fan, W. Tian, Hao Yao, W. Fan, Tingting Liu, J. Dang, Xiuzhong Zhu","doi":"10.3724/SP.J.1105.2014.13396","DOIUrl":"https://doi.org/10.3724/SP.J.1105.2014.13396","url":null,"abstract":"The ABC miktoarm star terpolymer MPEG-PTHF (-PDMA) was synthesized by the combination of click chemistry, atom transfer radical polymerization (ATRP) and cationic ring opening polymerization (CROP). A block copolymer of poly(ethylene glycol) (PEG) and poly(N,N-dimethylaminoethyl methacrylate) (PDMA) which bears an azido at diblock junction (MPEG-N3 (-PDMA)) was first prepared by atom transfer radical polymerization. Then, an alkynyl-terminated narrow distributed polytetrahydrofuran (PTHF-Alk) was synthesized as another building block via cationic ring opening polymerization. The well-defined ABC miktoarm star shaped terpolymer was afforded by clicking MPEG-N, (-PDMA) onto the chain end of PTHF-Alk. The structure of the star terpolymer was characterized by the FTIR,NMR and SEC/MALLS. The self-assembly behavior of the polymer were investigated by dynamic light scattering (DLS) and transmission electron microscopy (TEM). This star shaped terpolymer consists of a hydrophobic PTHF chain, a hydrophiphilic PEG chain and another stimuli-responsive PDMA chain. It can self-assemble into micelles with different sizes and morphologies at various pH values, such as 5. 0,7. 4 and 9. 5. The micellar size also exhibits temperature-dependence at pH 7. 4 and 9. 5. The variation of size and morphology of the micelles with the solution pH and temperature is ascribed to the pH- and thermo-responsive properties of the PDMA block.","PeriodicalId":7133,"journal":{"name":"高分子学报","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2014-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74067574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 a Silane Coupling Agent and Its Application in Silica/NR Composites: Synthesis of a Silane Coupling Agent and Its Application in Silica/NR Composites 硅烷偶联剂的合成及其在二氧化硅/NR复合材料中的应用:硅烷偶联剂的合成及其在二氧化硅/NR复合材料中的应用
IF 1.9 4区 化学
高分子学报 Pub Date : 2014-04-23 DOI: 10.3724/SP.J.1105.2014.13189
Pan Qi-wei, Wan Bingbing, Z. Ying, Zhao Jian-qing
{"title":"Synthesis of a Silane Coupling Agent and Its Application in Silica/NR Composites: Synthesis of a Silane Coupling Agent and Its Application in Silica/NR Composites","authors":"Pan Qi-wei, Wan Bingbing, Z. Ying, Zhao Jian-qing","doi":"10.3724/SP.J.1105.2014.13189","DOIUrl":"https://doi.org/10.3724/SP.J.1105.2014.13189","url":null,"abstract":"","PeriodicalId":7133,"journal":{"name":"高分子学报","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2014-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79944985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Molecular Mechanism Involved in Biodegradation of Castor Oil Based Plastic Foam: Molecular Mechanism Involved in Biodegradation of Castor Oil Based Plastic Foam 蓖麻油基泡沫塑料生物降解的分子机制:蓖麻油基泡沫塑料生物降解的分子机制
IF 1.9 4区 化学
高分子学报 Pub Date : 2014-04-23 DOI: 10.3724/SP.J.1105.2014.13321
Hu Jing, R. Teng, Rong Minzhi, Zhang Mingqiu
{"title":"Molecular Mechanism Involved in Biodegradation of Castor Oil Based Plastic Foam: Molecular Mechanism Involved in Biodegradation of Castor Oil Based Plastic Foam","authors":"Hu Jing, R. Teng, Rong Minzhi, Zhang Mingqiu","doi":"10.3724/SP.J.1105.2014.13321","DOIUrl":"https://doi.org/10.3724/SP.J.1105.2014.13321","url":null,"abstract":"","PeriodicalId":7133,"journal":{"name":"高分子学报","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2014-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86267476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Green Fabrication and Catalytic Properties of Ag/APAN Nanofibrous Composite Membranes: Green Fabrication and Catalytic Properties of Ag/APAN Nanofibrous Composite Membranes Ag/APAN纳米纤维复合膜的绿色制备与催化性能:Ag/APAN纳米纤维复合膜的绿色制备与催化性能
IF 1.9 4区 化学
高分子学报 Pub Date : 2014-04-23 DOI: 10.3724/SP.J.1105.2014.13215
Yu Li-na, W. Min, Shen Lingdi, Wang Xuefen, Zhu Meifang
{"title":"Green Fabrication and Catalytic Properties of Ag/APAN Nanofibrous Composite Membranes: Green Fabrication and Catalytic Properties of Ag/APAN Nanofibrous Composite Membranes","authors":"Yu Li-na, W. Min, Shen Lingdi, Wang Xuefen, Zhu Meifang","doi":"10.3724/SP.J.1105.2014.13215","DOIUrl":"https://doi.org/10.3724/SP.J.1105.2014.13215","url":null,"abstract":"","PeriodicalId":7133,"journal":{"name":"高分子学报","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2014-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81744851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
The Construction of Phase Diagrams for Coagulation Formation of the Wet Spinning of Polyimide Fibers: The Construction of Phase Diagrams for Coagulation Formation of the Wet Spinning of Polyimide Fibers 聚酰亚胺纤维湿纺混凝形成相图的构建:聚酰亚胺纤维湿纺混凝形成相图的构建
IF 1.9 4区 化学
高分子学报 Pub Date : 2014-04-23 DOI: 10.3724/SP.J.1105.2014.13238
Chen Xue, Wu Dezhen, Han Enlin
{"title":"The Construction of Phase Diagrams for Coagulation Formation of the Wet Spinning of Polyimide Fibers: The Construction of Phase Diagrams for Coagulation Formation of the Wet Spinning of Polyimide Fibers","authors":"Chen Xue, Wu Dezhen, Han Enlin","doi":"10.3724/SP.J.1105.2014.13238","DOIUrl":"https://doi.org/10.3724/SP.J.1105.2014.13238","url":null,"abstract":"","PeriodicalId":7133,"journal":{"name":"高分子学报","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2014-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83023845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Ethanolamine Functionalized Graphene and Its PVB Composites: Preparation of Ethanolamine Functionalized Graphene and Its PVB Composites 乙醇胺功能化石墨烯及其PVB复合材料的制备:乙醇胺功能化石墨烯及其PVB复合材料的制备
IF 1.9 4区 化学
高分子学报 Pub Date : 2014-04-23 DOI: 10.3724/SP.J.1105.2014.13231
Wang Lin-feng, Ma Wen-shi, Xiao Shu-wen
{"title":"Preparation of Ethanolamine Functionalized Graphene and Its PVB Composites: Preparation of Ethanolamine Functionalized Graphene and Its PVB Composites","authors":"Wang Lin-feng, Ma Wen-shi, Xiao Shu-wen","doi":"10.3724/SP.J.1105.2014.13231","DOIUrl":"https://doi.org/10.3724/SP.J.1105.2014.13231","url":null,"abstract":"","PeriodicalId":7133,"journal":{"name":"高分子学报","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2014-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77402923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
XAFS Applications on Polymers and Related Materials XAFS在聚合物及相关材料上的应用
IF 1.9 4区 化学
高分子学报 Pub Date : 2014-04-23 DOI: 10.3724/SP.J.1105.2014.13303
Hl Guo, 王佳怡, 吴忠华, Zhonghuai Wu, S. Jiang, Jy Wang, Jy 吴忠华；Wang
{"title":"XAFS Applications on Polymers and Related Materials","authors":"Hl Guo, 王佳怡, 吴忠华, Zhonghuai Wu, S. Jiang, Jy Wang, Jy 吴忠华；Wang","doi":"10.3724/SP.J.1105.2014.13303","DOIUrl":"https://doi.org/10.3724/SP.J.1105.2014.13303","url":null,"abstract":"polymer materials are a class of materials of great importance for their peculiar chemical-physical properties. The basic principles of X-ray absorption fine structure (XAFS) which is promoted by synchrotron radiation, including extended X-ray absorption fine structure (EXAFS) and X-ray absorption near-edge structure (XANES) were introduced. Various XAFS methods were reviewed for applications in studies of polymers and related materials, including usual polymers, organometallic polymers, Pd-droped polymers, ionomers, carbon based materials, etc. These mentioned applications have showed the significance and advantage of XAFS in polymers and related materials field. It is confident that the promotion and growth in XAFS would bring more benefits in scientific research of polymers.","PeriodicalId":7133,"journal":{"name":"高分子学报","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2014-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90636789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Study on the Graft Modification of PVC with Epoxy Fat Acid Methyl Ester and the Plasticizing Properties: Study on the Graft Modification of PVC with Epoxy Fat Acid Methyl Ester and the Plasticizing Properties 环氧脂肪酸甲酯接枝改性PVC及塑化性能研究环氧脂肪酸甲酯接枝改性PVC及塑化性能研究
IF 1.9 4区 化学
高分子学报 Pub Date : 2014-04-23 DOI: 10.3724/SP.J.1105.2014.13227
Sun Hua-zhen, Yang Po, Fan Hao-jun, Chen Yi
{"title":"Study on the Graft Modification of PVC with Epoxy Fat Acid Methyl Ester and the Plasticizing Properties: Study on the Graft Modification of PVC with Epoxy Fat Acid Methyl Ester and the Plasticizing Properties","authors":"Sun Hua-zhen, Yang Po, Fan Hao-jun, Chen Yi","doi":"10.3724/SP.J.1105.2014.13227","DOIUrl":"https://doi.org/10.3724/SP.J.1105.2014.13227","url":null,"abstract":"","PeriodicalId":7133,"journal":{"name":"高分子学报","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2014-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82745450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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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