Synthesis of rapid responsive gels comprising hydrophilic backbone and poly(n-isopropylacrylamide) graft chains by raft polymerization and end-linking processes
文献类型：期刊论文
| 作者 | Liu, Qunfeng; Zhang, Ping; Qing, Aixiang; Lan, Yanxun; Shi, Jianbo; Lu, Mangeng |
| 刊名 | Polymer
 |
| 出版日期 | 2006-09-20 |
| 卷号 | 47期号:20页码:6963-6969 |
| 关键词 | End-linking processes Poly(n-isopropylacrylamide) Poly(ethylene glycol) |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2006.08.009 |
| 通讯作者 | Lu, mangeng(mglu@gic.ac.cn) |
| 英文摘要 | A thermosensitive poly(n-isopropylacrylamide) (pnipam) grafted gel, which comprises hydrophilic backbone and freely mobile pnipam graft chains, was synthesized by reversible addition fragmentation chain transfer (raft) polymerization and end-linking processes. functional pnipam bearing dithiobenzoate end group (-c(=s)s-r) was prepared first, and then it was reacted with divinyl compounds to obtain gel. in order to adjust the composition of the gels, two divinyl compounds, n,n-methylenebisacrylamide (bis) and poly(ethylene glycol) diacrylate (pegdac), were used. the cross-linking polymerization mechanism was proposed. the swelling and deswelling kinetics of the hydrogels were measured. the gels exhibit rapid deswelling kinetics. at the same time, they show rapid swelling kinetics within 30 min, whereas a conventional pnipam-co-peg-co-bis gel with the same feed composition requires more than 10 it to reach swelling equilibrium. (c) 2006 elsevier ltd. all rights reserved. |
| WOS关键词 | FREE-RADICAL POLYMERIZATION ; POLY N-ISOPROPYLACRYLAMIDE ; PNIPAAM HYDROGELS ; SHRINKING KINETICS ; SWELLING BEHAVIOR ; MOLECULAR-WEIGHT ; SEMI-IPN ; TEMPERATURE ; POLYSTYRENE ; MECHANISM |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000241421300007 |
| 出版者 | ELSEVIER SCI LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2379331 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Lu, Mangeng |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Chem, Guangzhou 510650, Peoples R China 2.Guangdong Ocean Univ, Coll Sci, Zhanjiang, Guangdong, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China 4.Sun Yat Sen Univ, Affiliated Hosp 1, Hosp Otorhinolaryngol, Guangzhou 510630, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Qunfeng,Zhang, Ping,Qing, Aixiang,et al. Synthesis of rapid responsive gels comprising hydrophilic backbone and poly(n-isopropylacrylamide) graft chains by raft polymerization and end-linking processes[J]. Polymer,2006,47(20):6963-6969. |
| APA | Liu, Qunfeng,Zhang, Ping,Qing, Aixiang,Lan, Yanxun,Shi, Jianbo,&Lu, Mangeng.(2006).Synthesis of rapid responsive gels comprising hydrophilic backbone and poly(n-isopropylacrylamide) graft chains by raft polymerization and end-linking processes.Polymer,47(20),6963-6969. |
| MLA | Liu, Qunfeng,et al."Synthesis of rapid responsive gels comprising hydrophilic backbone and poly(n-isopropylacrylamide) graft chains by raft polymerization and end-linking processes".Polymer 47.20(2006):6963-6969. |
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来源：中国科学院大学
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