Spectroscopic Study on Water Diffusion in Poly(ester urethane) Block Copolymer Matrix
文献类型：期刊论文
| 作者 | Wang W ; Jin Y ; Su ZH |
| 刊名 | journal of physical chemistry b
 |
| 出版日期 | 2009 |
| 卷号 | 113期号:48页码:15742-15746 |
| 关键词 | SHAPE-MEMORY POLYMERS EVANESCENT-WAVE SPECTROSCOPY THERMOMECHANICAL PROPERTIES REFLECTION SPECTROSCOPY TRANSPORT-PROPERTIES FTIR-ATR POLYURETHANE FILMS EPOXY MOISTURE |
| ISSN号 | 1520-6106 |
| 通讯作者 | su zh |
| 中文摘要 | the diffusion of water in a phase-separated biodegradable poly(ester urethane) shape-memory polymer with poly(e-caprolactone) (pcl) as the soft segment was investigated using time-resolved ftir-atr. on the basis of the band fitting and water ordering in drawn films, the broad water band in the 3800-2800 cm(-1) region was decomposed into four bands located at 3620, 3510, 3400, and 3260 cm(-1), and the first two components at 3620 and 35 10 cm(-1) were assigned to the vibrations of antisymmetric and symmetric stretching of water hydrogen bonded with the c=o group of the soft segment. the other two were associated with water bonded to the urethane hard segments in the forms of n-h:o-h:o=c bridge hydrogen bond and double hydrogen bonds with two c=o groups, respectively. furthermore, band fitting and two-dimensional correlation analyses revealed that in the diffusion process, water first diffuses into the continuous soft-rich pcl phase and then into the hard-rich urethane domains, forming double hydrogen bonds with two c=o groups prior to the bridge hydrogen bond in the form of n-h:o-h:o=c. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000272037800006 |
| 公开日期 | 2010-05-27 |
| 源URL | [http://202.98.16.49/handle/322003/12353]  |
| 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 | Wang W,Jin Y,Su ZH. Spectroscopic Study on Water Diffusion in Poly(ester urethane) Block Copolymer Matrix[J]. journal of physical chemistry b,2009,113(48):15742-15746. |
| APA | Wang W,Jin Y,&Su ZH.(2009).Spectroscopic Study on Water Diffusion in Poly(ester urethane) Block Copolymer Matrix.journal of physical chemistry b,113(48),15742-15746. |
| MLA | Wang W,et al."Spectroscopic Study on Water Diffusion in Poly(ester urethane) Block Copolymer Matrix".journal of physical chemistry b 113.48(2009):15742-15746. |
入库方式： OAI收割
来源：长春应用化学研究所
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