Composition dependence of the crystallization behavior and morphology of the poly(ethylene oxide)-poly(epsilon-caprolactone) diblock copolymer
文献类型：期刊论文
| 作者 | He CL ; Sun JR ; Ma J ; Chen XS ; Jing XB |
| 刊名 | biomacromolecules
 |
| 出版日期 | 2006 |
| 卷号 | 7期号:12页码:3482-3489 |
| 关键词 | RING-OPENING POLYMERIZATION POLY-EPSILON-CAPROLACTONE GLYCOL) BLOCK-COPOLYMERS X-RAY-SCATTERING MOLECULAR-WEIGHT TRIBLOCK COPOLYMERS SEQUENTIAL CRYSTALLIZATION ISOTHERMAL CRYSTALLIZATION ENZYMATIC DEGRADATION THINNING PROCESSES |
| ISSN号 | 1525-7797 |
| 通讯作者 | chen xs |
| 中文摘要 | the crystallization behavior and morphology of the crystalline-crystalline poly(ethylene oxide)-poly(epsilon-caprolactone) diblock copolymer (peo-b-pcl) was studied by differential scanning calorimetry (dsc), wide-angle x-ray diffraction (waxd), fourier transform infrared spectroscopy (ftir), small-angle x-ray scattering (saxs), and hot-stage polarized optical microscope (pom). the mutual effects between the peo and pcl blocks were significant, leading to the obvious composition dependence of the crystallization behavior and morphology of peo-b-pcl. in this study, the peo block length was fixed (m-n = 5000) and the weight ratio of pcl/peo was tailored by changing the pcl block length. both blocks could crystallize in peo-b-pcl with the pcl weight fraction (wfpcl) of 0.23-0.87. for the sample with the wfpcl of 0.36 or less, the peo block crystallized first, resulting in the obvious confinement of the pcl block and vice versa for the sample with wfpcl of 0.43 or more. with increasing wfpcl, the crystallinity of peo reduced continuously while the variation of the pcl crystallinity exhibited a maximum. the long period of peo-b-pcl increased with increasing wfpcl from 0.16 to 0.50 but then decreased with the further increase of wfpcl due to the interaction of the respective variation of the thicknesses of the peo and pcl crystalline lamellae. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000242701600026 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/16065]  |
| 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 | He CL,Sun JR,Ma J,et al. Composition dependence of the crystallization behavior and morphology of the poly(ethylene oxide)-poly(epsilon-caprolactone) diblock copolymer[J]. biomacromolecules,2006,7(12):3482-3489. |
| APA | He CL,Sun JR,Ma J,Chen XS,&Jing XB.(2006).Composition dependence of the crystallization behavior and morphology of the poly(ethylene oxide)-poly(epsilon-caprolactone) diblock copolymer.biomacromolecules,7(12),3482-3489. |
| MLA | He CL,et al."Composition dependence of the crystallization behavior and morphology of the poly(ethylene oxide)-poly(epsilon-caprolactone) diblock copolymer".biomacromolecules 7.12(2006):3482-3489. |
入库方式： OAI收割
来源：长春应用化学研究所
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。