Epitaxial crystallization of olefin block copolymers (OBCs) on uniaxially oriented isotactic polypropylene and high-density polyethylene films
文献类型：期刊论文
| 作者 | Wen, Tao1; Zhou, Yong1; Liu, Guoming1; Wang, Fosong1; Zhang, Xiugin1; Wang, Dujin1; Chen, Hongyu2; Walton, Kim3; Marchand, Gary3; Loos, Joachim4,5 |
| 刊名 | POLYMER
 |
| 出版日期 | 2012-01-24 |
| 卷号 | 53期号:2页码:529-535 |
| 关键词 | Epitaxy Olefin Block Copolymer Tem |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2011.11.062 |
| 英文摘要 | The epitaxial crystallization behavior of olefin block copolymers (OBCs) on uniaxially oriented isotactic polypropylene (iPP) and high-density polyethylene (HDPE) films has been investigated by transmission electron microscopy (TEM). The crystallizable blocks of the OBCs under investigation were epitaxially nucleated by both iPP and HDPE substrates and epitaxial growth of OBC lamellae was observed. Epitaxial crystallization of the OBCs has been found for slow and fast cooling conditions from the melt which pointed to the strong interaction between the polyolefin substrates and the OBCs. However, the epitaxial morphology of the OBCs strongly depends on their octene concentration difference (Delta(C8)) between crystallizable and non-crystallizable blocks, which probably is related to the OBC segregation strength in the melt. With high Delta(C8) the development of epitaxial crystallization of the OBC was restricted within isolated crystalline domains surrounded by the amorphous phase. In contrast, with low Delta(C8) the oriented lamellae of the OBC were distributed homogeneously on iPP but formed separated crystalline domains on HDPE, which has a stronger nucleation capability than iPP on the crystalline OBC blocks because of its similar molecular architecture. Our study points to epitaxy as another reason for the strong interaction between OBC and polyolefins which causes the advanced compatibilization behavior of OBCs when compared with conventional random copolymers. (C) 2011 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000299607400032 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/47221]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Dujin |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, CAS Key Lab Engn Plast, Beijing 100190, Peoples R China 2.Dow Chem China Co Ltd, Shanghai 201203, Peoples R China 3.Dow Chem Co USA, Freeport, TX 77541 USA 4.Univ Glasgow, Kelvin Nanocharacterisat Ctr, SUPA, Glasgow G12 8QQ, Lanark, Scotland 5.Univ Glasgow, Sch Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland |
| 推荐引用方式 GB/T 7714 | Wen, Tao,Zhou, Yong,Liu, Guoming,et al. Epitaxial crystallization of olefin block copolymers (OBCs) on uniaxially oriented isotactic polypropylene and high-density polyethylene films[J]. POLYMER,2012,53(2):529-535. |
| APA | Wen, Tao.,Zhou, Yong.,Liu, Guoming.,Wang, Fosong.,Zhang, Xiugin.,...&Loos, Joachim.(2012).Epitaxial crystallization of olefin block copolymers (OBCs) on uniaxially oriented isotactic polypropylene and high-density polyethylene films.POLYMER,53(2),529-535. |
| MLA | Wen, Tao,et al."Epitaxial crystallization of olefin block copolymers (OBCs) on uniaxially oriented isotactic polypropylene and high-density polyethylene films".POLYMER 53.2(2012):529-535. |
入库方式： OAI收割
来源：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。