引用本文:
董丽松, 郑国栋, 冯之榴. 用DSC研究聚砜预聚物的转变[J]. 应用化学,
1987, 4(1): 53-56.
Citation: Dong Lisong, Zheng Guodong, Feng Zhiliu. AN INVESTIGATION ON THE TRANSITIONS OF OLIGO-POLYSULFONES BY DSC[J]. Chinese Journal of Applied Chemistry, 1987, 4(1): 53-56.
Citation: Dong Lisong, Zheng Guodong, Feng Zhiliu. AN INVESTIGATION ON THE TRANSITIONS OF OLIGO-POLYSULFONES BY DSC[J]. Chinese Journal of Applied Chemistry, 1987, 4(1): 53-56.
用DSC研究聚砜预聚物的转变
摘要:
本工作用示差扫描量热法(DSC)研究了双酚A型和酚酞型两种聚砜预聚物的转变。发现两种预聚物经适当的热处理可以在玻璃化转变温度以下和以上分别产生两个转变。这两个转变可分别归之于局部分子间短程有序和长程有序的破坏。同时,得到了这两种聚砜的玻璃化温度与数均分子量的关系式。
English
AN INVESTIGATION ON THE TRANSITIONS OF OLIGO-POLYSULFONES BY DSC
Abstract:
The transitions of bisphenol A and phenolphthalein oligo-polysulfones were investigated by DSC. It is found that for both the oligomers, after proper heat-treatment, two more transitions, lower and higher than their Tg,appeared on their DSC curves. It might be reasonable to suggest that these two transitions be due to the disordering of loc 1 short and long range order of molecular arrangements respectively. Equations for linear relationship between Tg and Mn for both the oligomers are given in the paper.
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