Chain structure regulation of carbon dioxide-propylene oxide copolymers
文献类型：期刊论文
| 作者 | Zhou Jian; Tao Youhua; Wang Xianhong; Zhao Xiaojiang; Wang Fosong |
| 刊名 | ACTA POLYMERICA SINICA
 |
| 出版日期 | 2007-10-01 |
| 期号 | 10页码:913-917 |
| 关键词 | Carbon Dioxide Copolymerization Chain Structures Molecular Weight Crosslinking Region-regular Structure |
| ISSN号 | 1000-3304 |
| 英文摘要 | This review summarizes our achievements in controlling the chain structures of carbon dioxide-propylene oxide copolymers (PPC). PPC with number average molecular weight( M,,) over 2 X 10(5) was obtained by double propagation mechanism, the resulted higher M. copolymers showed improved thermal and mechanical performance than common copolymers with M-n lower than 1.5 x 10(5). Another way to regulate chain structures was employing crosslinking strategy. PPC bearing small moiety of pendant C C groups was synthesized by terpolymerization of allyl glycidyl ether, propylene oxide and carbon dioxide. Once subjected to UV radiation crosslinking, the dimension stability of the crosslinked copolymer was improved. The third way to regulate chian structures of PPC was controlling its region structure. Lewis base modification strategy on rare earth ternary catalyst was disclosed to enhance nucleophilic ability of active center, PPC with H-T linkages over 83 % and M. up to 1.0 x 10(5), was synthesized at room temperature using y (CCl3OO)(3)-ZnEt2-glycerine catalyst and 1, 10-Phenanthroline cocatalyst. When H-T linkages increased from 69. 7 % to 83.2 %, a 8 degrees C increase of T-g was found, indicating that increase of H-T structure in PPC did raise its T-g. |
| 语种 | 英语 |
| WOS记录号 | WOS:000250566100004 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/62951]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang Xianhong |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Beijing 100864, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou Jian,Tao Youhua,Wang Xianhong,et al. Chain structure regulation of carbon dioxide-propylene oxide copolymers[J]. ACTA POLYMERICA SINICA,2007(10):913-917. |
| APA | Zhou Jian,Tao Youhua,Wang Xianhong,Zhao Xiaojiang,&Wang Fosong.(2007).Chain structure regulation of carbon dioxide-propylene oxide copolymers.ACTA POLYMERICA SINICA(10),913-917. |
| MLA | Zhou Jian,et al."Chain structure regulation of carbon dioxide-propylene oxide copolymers".ACTA POLYMERICA SINICA .10(2007):913-917. |
入库方式： OAI收割
来源：化学研究所
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