| STRUCTURE AND PROPERTIES OF POLY (N-VINYLCARBAZOLE) OBTAINED VIA ASYMMETRICALLY STEREOSELECTIVE POLYMERIZATION |
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| 作者姓名： | 陈传福 粟权 刘卫宏 陈永明 习复 |
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| 作者单位： | PCLCC，Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，China Polymer Chemistry Laboratory Chinese Academy of Sciences and China Petro-Chemical Corporation，PCLCC，Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，China Polymer Chemistry Laboratory Chinese Academy of Sciences and China Petro-Chemical Corporation，PCLCC，Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，China Polymer Chemistry Laboratory Chinese Academy of Sciences and China Petro-Chemical Corporation，PCLCC，Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，China Polymer Chemistry Laboratory Chinese Academy of Sciences and China Petro-Chemical Corporation，PCLCC，Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，China Polymer Chemistry Laboratory Chinese Academy of Sciences and China Petro-Chemical Corporation |
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| 基金项目： | Project 29774039 was supported by the National Natural Science Foundation of China |
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| 摘 要： | The structure and properties of poly(N-vinylcarbazole) (PVCZ) obtainedvia asymmetrically stereoselective polymerization have been studied by using ~1HNMRspectra, UV spectra, DSC analysis and GPC. The steric microstructure i.e. the contentof isotactic sequences was found to be increased by using AIBN to (-)Sp~+(+)CSA~- asthe initiators or catalysts and the mole extinction coefficient to be decreased. Bimodalmolecular weight distribution (MWD)s of the obtained PVCZs were caused by two propa-gating species of the free ions and the ion-pairs associated with the organic salts duringpolymerization.
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| 关 键 词： | Poly （N-vinylcarbazole） Asymmetrical polymerization Isotactic sequence |
| 收稿时间： | 1996-09-05 |
STRUCTURE AND PROPERTIES OF POLY (N-VINYLCARBAZOLE) OBTAINED VIA ASYMMETRICALLY STEREOSELECTIVE POLYMERIZATION* |
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| CHEN Chuanfu,SU Quan,LIU Weihong,CHEN Yongming,XI Fu.STRUCTURE AND PROPERTIES OF POLY (N-VINYLCARBAZOLE) OBTAINED VIA ASYMMETRICALLY STEREOSELECTIVE POLYMERIZATION[J].Chinese Journal of Polymer Science,1998,0(1):75-80. |
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| Authors: | CHEN Chuanfu SU Quan LIU Weihong CHEN Yongming XI Fu |
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| Institution: | PCLCC; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100080; China Polymer Chemistry Laboratory Chinese Academy of Sciences and China Petro-Chemical Corporation |
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| Abstract: | The structure and properties of poly(N-vinylcarbazole) (PVCZ) obtainedvia asymmetrically stereoselective polymerization have been studied by using ~1HNMRspectra, UV spectra, DSC analysis and GPC. The steric microstructure i.e. the contentof isotactic sequences was found to be increased by using AIBN to (-)Sp~+(+)CSA~- asthe initiators or catalysts and the mole extinction coefficient to be decreased. Bimodalmolecular weight distribution (MWD)s of the obtained PVCZs were caused by two propa-gating species of the free ions and the ion-pairs associated with the organic salts duringpolymerization. |
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| Keywords: | Poly (N-vinylcarbazole) Asymmetrical polymerization Isotactic sequence |
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