Shell-core-corona aggregates formed from poly(styrene)-poly(4-vinylpyridine) block copolymer induced by added homopolymer via interpolymer hydrogen-bonding
文献类型：期刊论文
| 作者 | Wang QH(王齐华) ; Wang C(王超); Wang QH(王齐华); Wang TM(王廷梅)
|
| 刊名 | Polymer
 |
| 出版日期 | 2009 |
| 卷号 | 50页码:5268-5275 |
| 关键词 | Block copolymers Interpolymer hydrogen-bonding Coaggregation |
| ISSN号 | 0032-3861 |
| 通讯作者 | 王廷梅 ; 王齐华 |
| 中文摘要 | The solution behavior of poly(styrene)-poly(4-vinylpyridine) (PS-b-P4VP) block copolymer with added poly(4,40 -oxydiphenylenepyromellitamic acid) (POAA) homopolymer in DMF is studied by dynamic light scattering (DLS), nuclear magnetic resonance (NMR), and transmission electron microscopy (TEM). It is found that coaggregation takes place when mixing PS-b-P4VP block copolymer and POAA homopolymer in DMF due to the strong interpolymer hydrogen-bonding between POAA chains and P4VP blocks. The coaggregation is a diffusion-controlled process and the complexation-induced aggregates are very stable. NMR measurements demonstrate that the resultant aggregates are much more swollen compared with typical amphiphilic block copolymer core–shell micelles. DLS measurements with Eu3þ as a probe combined with TEM observation, are employed to study the structure of the aggregates. Results reveal that the formed aggregates are core–shell spheres with the P4VP/POAA complexes as core and the PS blocks as shell when the weight ratio of POAA to PS-b-P4VP is lower. However, a core–shell–corona structure forms with a thin layer of POAA chains adsorbed on the initial core–shell aggregates with increasing weight content of POAA to 60%. Finally, possible mechanisms of the structural transitions are proposed. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the Innovative Group Foundation from NSFC (Grant No. 50721062);the important direction project for the knowledge innovative engineering of Chinese Academy of Sciences (Grant No.KGCX3-SYW-205);the National 973 project of China (2007CB607606) |
| 语种 | 英语 |
| WOS记录号 | WOS:000271144600015 |
| 公开日期 | 2012-11-13 |
| 源URL | [http://210.77.64.217/handle/362003/2112]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 兰州化学物理研究所_先进润滑与防护材料研究发展中心 |
| 通讯作者 | Wang QH(王齐华); Wang QH(王齐华); Wang TM(王廷梅) |
| 推荐引用方式 GB/T 7714 | Wang QH,Wang C,Wang QH,et al. Shell-core-corona aggregates formed from poly(styrene)-poly(4-vinylpyridine) block copolymer induced by added homopolymer via interpolymer hydrogen-bonding[J]. Polymer,2009,50:5268-5275. |
| APA | 王齐华,王超,王齐华,&王廷梅.(2009).Shell-core-corona aggregates formed from poly(styrene)-poly(4-vinylpyridine) block copolymer induced by added homopolymer via interpolymer hydrogen-bonding.Polymer,50,5268-5275. |
| MLA | 王齐华,et al."Shell-core-corona aggregates formed from poly(styrene)-poly(4-vinylpyridine) block copolymer induced by added homopolymer via interpolymer hydrogen-bonding".Polymer 50(2009):5268-5275. |
入库方式： OAI收割
来源：兰州化学物理研究所
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