| 偏氯乙烯-丙烯腈悬浮共聚物的热行为与结晶度 |
| |
| 引用本文： | 周树学,翁志学,黄志明,潘祖仁.偏氯乙烯-丙烯腈悬浮共聚物的热行为与结晶度[J].高分子材料科学与工程,2001,17(4):123-127. |
| |
| 作者姓名： | 周树学 翁志学 黄志明 潘祖仁 |
| |
| 作者单位： | 浙江大学高分子科学与工程研究所, |
| |
| 基金项目： | 浙江省自然科学基金资助项目 (5 980 6 2 |
| |
| 摘 要： | 用DSC法研究了VDC－AN悬浮共聚物的玻璃化转变和热熔融行为，并用Barton方程定量关联了Tg与组成的关系，用TGA法研究了共聚物的热分解行为，结果表明，AN单元对与其相邻连拉的VDC单元脱HC1有诱导催化作用，由DCS法和X射线衍射法得到高VDC含量的共聚物结晶度与AN含量成线性关系，而在高AN含量时则与AN组成成三次多项式关系。
|
| 关 键 词： | 偏氯乙烯－丙烯腈共聚物 玻璃化转变 热熔融 热分解 结晶度 悬浮共聚物 |
| 文章编号： | 1000-7555(2001)04-0123-05 |
STUDY ON THERMAL BEHAVIORS AND CRYSTALLINITY OF VINYLIDENE CHLORIDE-ACRYLONITRILE SUSPENSION COPOLYMERS |
| |
| ZHOU Shu xue,WENG Zhi xue,HUANG Zhi ming,PAN Zu ren.STUDY ON THERMAL BEHAVIORS AND CRYSTALLINITY OF VINYLIDENE CHLORIDE-ACRYLONITRILE SUSPENSION COPOLYMERS[J].Polymer Materials Science & Engineering,2001,17(4):123-127. |
| |
| Authors: | ZHOU Shu xue WENG Zhi xue HUANG Zhi ming PAN Zu ren |
| |
| Abstract: | The glass transition and thermal melting behavior of vinylidene chloride(VDC) acrylonitrile(AN) suspension copolymers with high conversion were investigated by differential scanning calorimetry(DSC). Barton equation was used to quantitatively describe the relationship between glass temperature and VDC AN copolymer composition. The thermal decomposition of copolymer determined by TGA under nitrogen atmosphere shows that AN unit has the catalytic effect on the loss of HCl from the conterminous VDC unit. It was observed that the crystallinity of VDC AN copolymer with high VDC content is linear function of its AN mass content, while that with high AN level is function of three order of AN mass content from the DSC and X ray diffraction study. |
| |
| Keywords: | vinylidene chloride acrylonitrile copolymer glass transition thermal melting thermal decomposition crystallinity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
