Reorientation of the poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) crystal in thin film induced by polyethylene glycol
Chen, YJ; Park, Y; Yang, CM; Noda, I; Jung, YM
2017
发表期刊POLYMER
ISSN0032-3861
卷号120期号:-页码:59-67
文章类型期刊论文
摘要Understanding the crystal structure and thermal behavior of poly(3-hydroxybutyrate-co-3hydroxyhexanoate) (PHBHx) and its blends thin film under spatial confinement is crucial for its application in molecular scale devices and advanced nanotechnology. In this study, we investigate the influence of polyethylene glycol (PEG) on the morphology and molecular orientation of PHBHx thin films using scanning probe microscope and grazing-incidence wide-angle X-ray scattering. Unexpectedly, we found that with addition of PEG no hydrogen bonds were detectable in the thin film of PHBHx/PEG blend. PEG destroyed the edge-on lamellar orientation of PHBHx leading to the chain axis to pack preferentially in a direction between the out-of-plane and in-plane along with a flat surface. More importantly, analysis of the q space of (020) diffraction indicated that PHBHx crystal tends to form a densely packed lamellae after the addition of PEG. The thermal behaviors of such densely packed lamellae crystals were examined by temperature-dependent infrared-reflection absorbance spectroscopy and two-dimensional correlation analysis. It was revealed that the crystal structure of PHBHx/PEG blends were stable during the melting process despite the decrease of the crystallinity. We speculate that the reorientation and thermal stability of the crystalline PHBHx/PEG blends were due to PEG acting as an effective solvent that not only lowered the surface energy of chain folding surface but also changed the kinetics of PHBHx crystallization. This interesting observation will provide new insights into understanding of the crystallization kinetics of PHBHx thin film under spatial confinement.(C) 2017 Elsevier Ltd. All rights reserved.
关键词X-ray-diffraction Ultrathin Films Thermal-behavior Polymer-films Crystallization Behavior Correlation Spectroscopy Lamellar Orientation Synchrotron Saxs Single-crystals Co2 Separation
DOI10.1016/j.polymer.2017.05.050
关键词[WOS]X-RAY-DIFFRACTION ; ULTRATHIN FILMS ; THERMAL-BEHAVIOR ; POLYMER-FILMS ; CRYSTALLIZATION BEHAVIOR ; CORRELATION SPECTROSCOPY ; LAMELLAR ORIENTATION ; SYNCHROTRON SAXS ; SINGLE-CRYSTALS ; CO2 SEPARATION
收录类别SCI
语种英语
WOS记录号WOS:000404180400007
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28800
专题中科院上海应用物理研究所2011-2018年
推荐引用方式
GB/T 7714
Chen, YJ,Park, Y,Yang, CM,et al. Reorientation of the poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) crystal in thin film induced by polyethylene glycol[J]. POLYMER,2017,120(-):59-67.
APA Chen, YJ,Park, Y,Yang, CM,Noda, I,&Jung, YM.(2017).Reorientation of the poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) crystal in thin film induced by polyethylene glycol.POLYMER,120(-),59-67.
MLA Chen, YJ,et al."Reorientation of the poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) crystal in thin film induced by polyethylene glycol".POLYMER 120.-(2017):59-67.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Reorientation of the(2584KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Chen, YJ]的文章
[Park, Y]的文章
[Yang, CM]的文章
百度学术
百度学术中相似的文章
[Chen, YJ]的文章
[Park, Y]的文章
[Yang, CM]的文章
必应学术
必应学术中相似的文章
[Chen, YJ]的文章
[Park, Y]的文章
[Yang, CM]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

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。