Poly(n-isopropylacrylamide) hydrogels with improved shrinking kinetics by raft polymerization
文献类型：期刊论文
| 作者 | Liu, QF; Zhang, P; Qing, AX; Lan, YX; Lu, MG |
| 刊名 | Polymer
 |
| 出版日期 | 2006-03-22 |
| 卷号 | 47期号:7页码:2330-2336 |
| 关键词 | Hyperbranched N-isopropylacrylamide Reversible addition fragmentation chain transfer (raft) |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2006.02.006 |
| 通讯作者 | Lu, mg() |
| 英文摘要 | Functional poly(n-isopropylacrylamide) (pnipam) hydrogels were prepared by reversible addition fragmentation chain transfer (raft) polymerization of n-isopropylacrylamide (nipam) in the presence of n,n-methylenebisacylamide (bis) as a cross-linker and 4-cyanopentanoic acid dithiobenzoate as chain transfer reagent (cta). the swelling behaviors were investigated and the hydrogels by raft polymerization (raft gels) showed accelerated shrinking kinetics and higher swelling ratio comparing with conventional hydrogel (cg). it could be attributed to the presence of dangling chains mainly caused by cta, which could retard the crosslinking reaction rate greatly. another cta, 3-(trithiocarbonyl) propanoic acid, was adopted to further investigate the effect of cta. it showed the similar effect except the different accelerated degree to the shrinking kinetics. furthermore, the living character of the raft process was used to polymerize a new batch of monomer (nipam) from functional raft gels to introduce grafted structure. the pnipam-g-pnipam hydrogels indicted further accelerated shrinking kinetics than functional backbone hydrogels. (c) 2006 elsevier ltd. all rights reserved. |
| WOS关键词 | BRANCHED POLY(METHYL METHACRYLATE)S ; TRANSFER RADICAL POLYMERIZATION ; CROSS-LINK UNITS ; HYPERBRANCHED POLYMERS ; N-ISOPROPYLACRYLAMIDE ; DYNAMIC PROPERTIES ; PNIPAAM HYDROGELS ; FAST-RESPONSE ; SEMI-IPN ; GEL |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000236629900011 |
| 出版者 | ELSEVIER SCI LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2379185 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Lu, MG |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Chem, Guangzhou 510650, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, QF,Zhang, P,Qing, AX,et al. Poly(n-isopropylacrylamide) hydrogels with improved shrinking kinetics by raft polymerization[J]. Polymer,2006,47(7):2330-2336. |
| APA | Liu, QF,Zhang, P,Qing, AX,Lan, YX,&Lu, MG.(2006).Poly(n-isopropylacrylamide) hydrogels with improved shrinking kinetics by raft polymerization.Polymer,47(7),2330-2336. |
| MLA | Liu, QF,et al."Poly(n-isopropylacrylamide) hydrogels with improved shrinking kinetics by raft polymerization".Polymer 47.7(2006):2330-2336. |
入库方式： iSwitch采集
来源：中国科学院大学
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。