Spectroscopic Study on Water Diffusion in Poly(L-lactide)-Poly(ethylene glycol) Diblock Copolymer Film
文献类型：期刊论文
| 作者 | Jin Y ; Wang W ; Su ZH |
| 刊名 | macromolecules
 |
| 出版日期 | 2011 |
| 卷号 | 44期号:7页码:2132-2139 |
| 关键词 | INFRARED-SPECTROSCOPY ATR-FTIR REFLECTION SPECTROSCOPY BLOCK-COPOLYMERS POLYMERS MOLECULES STATE EPOXY IR POLY(OXYETHYLENE) |
| ISSN号 | 0024-9297 |
| 通讯作者 | su zh |
| 中文摘要 | diffusion of water in a phase-separated poly(l-lactide)-b-poly(ethylene glycol) (plla peg) copolymer with both blocks crystallizable was investigated using time-resolved atr-ftir with deuteratecl water and 2d correlation analysis. water molecules of three different states were identified in the copolymer matrix, and their formation sequence was determined. perturbation of water on the copolymer structure was revealed. while the amorphous plla chains were not affected, upon water penetration, conformation distribution of crystalline plla chains was altered, which can be reversed upon removal of the water, and the peg crystallinity in the copolymer was gradually destroyed and the process was not reversible. for the double amorphous plla peg film, water first associated with the more hydrophilic peg chains and then interacted with the plla segments. for the double crystalline film, however, crystalline plla segments were first perturbed by the water before the crystalline peg was affected. finally, the water diffusion coefficient for the plla peg copolymer was measured and compared with that of the plla and peg homopolymers. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000289028500053 |
| 公开日期 | 2012-06-11 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/44708]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Jin Y,Wang W,Su ZH. Spectroscopic Study on Water Diffusion in Poly(L-lactide)-Poly(ethylene glycol) Diblock Copolymer Film[J]. macromolecules,2011,44(7):2132-2139. |
| APA | Jin Y,Wang W,&Su ZH.(2011).Spectroscopic Study on Water Diffusion in Poly(L-lactide)-Poly(ethylene glycol) Diblock Copolymer Film.macromolecules,44(7),2132-2139. |
| MLA | Jin Y,et al."Spectroscopic Study on Water Diffusion in Poly(L-lactide)-Poly(ethylene glycol) Diblock Copolymer Film".macromolecules 44.7(2011):2132-2139. |
入库方式： OAI收割
来源：长春应用化学研究所
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