| 高压结晶PET/PC共混体系中生长在伸直链晶体内部球晶形态的观察 |
| |
| 引用本文： | 吕军,魏刚,黄锐,李良彬.高压结晶PET/PC共混体系中生长在伸直链晶体内部球晶形态的观察[J].高等学校化学学报,2005,26(12):2391-2393. |
| |
| 作者姓名： | 吕军 魏刚 黄锐 李良彬 |
| |
| 作者单位： | 四川大学高分子科学与工程学院,成都,610065;西华大学材料科学与工程学院,成都,610039 |
| |
| 摘 要： | 自从Wundedich等报道聚乙烯（PE）在高压结晶时可以生成伸直链晶体以来，相继很多有关聚合物体系的高压结晶行为方面的研究已见报道．研究结果表明，聚合物在高压下经历相转变时可产生非常丰富的微观结构，而球晶及伸直链晶体是其中最常见的两种结晶形态．但是，所观察到的这两种聚合物晶体都是分别存在，且独立生长的．到目前为止，尚未见到关于高压下球晶可以在伸直链晶体内部存在的报道．
|
| 关 键 词： | PET/PC共混物 高压结晶 结晶形态 |
| 文章编号： | 0251-0790（2005）12-2391-03 |
| 收稿时间： | 06 20 2005 12:00AM |
| 修稿时间： | 2005-06-20 |
Observation of Novel Spherulitic Morphology Formed in Extended-chain Crystals in High-pressure Crystallized PET/PC Blends |
| |
| L Jun,WEI Gang,HUANG Rui,LI Liang-Bin.Observation of Novel Spherulitic Morphology Formed in Extended-chain Crystals in High-pressure Crystallized PET/PC Blends[J].Chemical Research In Chinese Universities,2005,26(12):2391-2393. |
| |
| Authors: | L Jun WEI Gang HUANG Rui LI Liang-Bin |
| |
| Institution: | 1. College of Polymer Materials Science and Engineering, Siehuan University, Chengdu 610065, China; 2. College of Materials Science and Engineering, Xihua University, Chengdu 610039, China |
| |
| Abstract: | High-pressure crystallization behavior of poly(ethylene terephthalate)(PET)/biphenol-A polycarbonate(PC) blends were investigated by scanning electron microscopy(SEM) and atomic force microscopy(AFM).Two novel spherulitic structures,i.e.bamboo-shoot-like spherulite and brain-like spherulite,were observed in the polyester extended-chain crystals.The extended-chain lamellar crystal may be the substructure of these spherulites.This morphology,which is quite different from that of usual spherulite and extended-chain crystal,may promote the understanding of formation process and mechanism for both polymer spherulites and extended-chain crystals. |
| |
| Keywords: | PET/PC blend High-pressure crystallization Crystal morphology |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《高等学校化学学报》浏览原始摘要信息 |
| 点击此处可从《高等学校化学学报》下载免费的PDF全文 |
