Coil-to-rod conformational transition and single chain structure of graft copolymer by tuning the graft density
文献类型：期刊论文
| 作者 | Liu, Wenyong1,2; Liu, Yuejun2; Zeng, Guangsheng2; Liu, Ruigang1; Huang, Yong1,3,4 |
| 刊名 | POLYMER
 |
| 出版日期 | 2012-02-17 |
| 卷号 | 53期号:4页码:1005-1014 |
| 关键词 | Coil-to-rod Conformational Transition Single Chain Structure Graft Copolymer |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2012.01.006 |
| 英文摘要 | The chain conformation and individual chain structures of the graft copolymers ethyl cellulose grafting poly (acrylic acid) (EC-g-PAA) were investigated by laser light scattering (LLS) and atom force microscopy (AFM). The EC-g-PAA graft copolymers with two different side chain lengths and side chain grafting densities were synthesized via atom transfer radical polymerization (ATRP) from ethyl cellulose as the backbone. The graft copolymer molecules are adsorbed on the mica surface, and the observed single molecule structures by AFM reflect the molecular conformation in solution. An increase of the graft density of the graft copolymer induces the conformational transition due to the repulsion between side chains from coil to rod conformation. The observed disclike and rodlike single chain structures response to the coil and rod conformations, respectively. The results provide a direct visual experimental evidence of chain conformational and single chain structural transitions for graft copolymers in common solvents induced by graft density. (C) 2012 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000300525000016 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/49077]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, Wenyong |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Joint Lab Polymer Sci & Mat, BNLMS,Inst Chem, Beijing 100190, Peoples R China 2.Hunan Univ Technol, Key Lab Adv Mat & Technol Packaging, Coll Hunan Prov, Zhuzhou 412007, Peoples R China 3.Chinese Acad Sci, Natl Engn Res Ctr Plast, Tech Inst Phys & Chem, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Chem, Lab Cellulose & Lignocellulos Chem, Guangzhou 510650, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Wenyong,Liu, Yuejun,Zeng, Guangsheng,et al. Coil-to-rod conformational transition and single chain structure of graft copolymer by tuning the graft density[J]. POLYMER,2012,53(4):1005-1014. |
| APA | Liu, Wenyong,Liu, Yuejun,Zeng, Guangsheng,Liu, Ruigang,&Huang, Yong.(2012).Coil-to-rod conformational transition and single chain structure of graft copolymer by tuning the graft density.POLYMER,53(4),1005-1014. |
| MLA | Liu, Wenyong,et al."Coil-to-rod conformational transition and single chain structure of graft copolymer by tuning the graft density".POLYMER 53.4(2012):1005-1014. |
入库方式： OAI收割
来源：化学研究所
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