Unusual crystallization and melting behavior induced by microphase separation in MPEG-b-PLLA diblock copolymer
文献类型：期刊论文
| 作者 | Zhou,Dongdong; Sun,Jingru; Shao,Jun; Bian,Xinchao; Huang,Shaoyong; Li,Gao; Chen,Xuesi |
| 刊名 | polymer
 |
| 出版日期 | 2015 |
| 卷号 | 80期号:47页码:123-129 |
| 关键词 | POLY(L-LACTIDE)-BLOCK-POLY(ETHYLENE GLYCOL) COPOLYMER POLY(ETHYLENE GLYCOL) TRIBLOCK COPOLYMERS FRACTIONATED CRYSTALLIZATION POLY(L-LACTIDE) BLOCK CONFINED CRYSTALLIZATION MORPHOLOGY TRANSITION CRYSTALS BLENDS |
| 通讯作者 | li,g |
| 英文摘要 | the crystallization and melting behaviors of weakly segregated diblock copolymer (mpeg-b-plla) have been investigated by differential scanning calorimetry (dsc), wide-angle x-ray diffraction (waxd), and small-angle x-ray scattering (saxs). the microphase separation of mpeg-b-plla significantly influenced the crystallization behavior of peg and the melting behavior of plla block, which formed during the two-step crystallization process. plla block crystallized from melt under various cooling rates (r-c, (plla)s) in the first step, and peg sequentially crystallized in the second process as the temperature cooled from 60 degrees c to -70 degrees c at 10 degrees c/min. with r-c,r- plla decreasing, peg was more excluded out of the interlamellar regions of plla crystals, and concentrated into the interfibrillar regions, and formed the different microphase separation formed, which may attribute to the fractional crystallization and homogeneous nucleation. then the melting peak of plla at lower temperature enhanced with the micro-domains of peg growing, which could be ascribed to that peg block could accelerate the melting of plla near these micro-domains. (c) 2015 elsevier ltd. all rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-31 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/67899]  |
| 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 | Zhou,Dongdong,Sun,Jingru,Shao,Jun,et al. Unusual crystallization and melting behavior induced by microphase separation in MPEG-b-PLLA diblock copolymer[J]. polymer,2015,80(47):123-129. |
| APA | Zhou,Dongdong.,Sun,Jingru.,Shao,Jun.,Bian,Xinchao.,Huang,Shaoyong.,...&Chen,Xuesi.(2015).Unusual crystallization and melting behavior induced by microphase separation in MPEG-b-PLLA diblock copolymer.polymer,80(47),123-129. |
| MLA | Zhou,Dongdong,et al."Unusual crystallization and melting behavior induced by microphase separation in MPEG-b-PLLA diblock copolymer".polymer 80.47(2015):123-129. |
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。