location: Current position: Home >> Scientific Research >> Paper Publications

结晶性聚碳酸酯的结晶形态与热性能表征

Hits:

Indexed by:会议论文

Date of Publication:2014-09-24

Page Number:317-318

Key Words:聚碳酸酯;结晶形态;热性能;差示扫描量热仪

Abstract:本文通过偏光显微镜(POM)对其结晶形态表征,结果表明随着等温结晶温度的升高,聚合物晶粒尺寸逐渐变大;通过差示扫描量热仪(DSC)对其进行热性能表征,结果表明该聚碳酸酯结晶温度为184℃左右,具有高达269℃的熔点,但在高温熔融状态下该聚合物不稳定,热失重测试(TGA)显示,熔融过程中聚合物已经开始发生热降解,原因是由于链末端羟基的影响。

Pre One:Bifunctional Aluminum Catalyst for CO2 Fixation: "Regioselective Ring Opening of Three-Membered Heterocyclic Compounds

Next One:beta-NaYF4:Yb3+, Er3+ upconversion microcrystals with both high emission intensity and controlled morphology