| 聚乙烯的玻璃化转变温度的计算 |
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| 引用本文： | 罗孟波 许健民. 聚乙烯的玻璃化转变温度的计算[J]. 浙江大学学报(理学版), 1997, 24(1): 36-39 |
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| 作者姓名： | 罗孟波 许健民 |
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| 作者单位： | 杭州大学物理系!杭州，310028，杭州大学物理系!杭州，310028 |
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| 摘 要： | 本文提出了一种计算无定形高聚物玻瑞化转变沮度(T,)的方法，利用稀溶液中高分子单链的配分函数，能够确定它的T,·本文利用用构象的完全计算法得到的聚乙烯单链的配分函数，计算了聚乙烯单链的二级相变沮度)和聚集态聚乙烯的玻璐化转变温度(T,),T,的值与实验值相当接近.
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| 关 键 词： | 聚集态 二极相变温度 玻璃化转变温度 聚乙烯 |
Calculating the Glass Transition Temperature of Polyethylene |
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| Luo Mengbo,Xu Jianmin. Calculating the Glass Transition Temperature of Polyethylene[J]. Journal of Zhejiang University(Sciences Edition), 1997, 24(1): 36-39 |
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| Authors: | Luo Mengbo Xu Jianmin |
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| Abstract: | A method is developed to calculate the glass transition temperature (Tg) of an amorphous polymer. Using the partition function of the polymer chain in a dilute solution, Tg can be determined. The second order temPerature (T2) and T, of a single polyethylene (PE) chain are determined from its partition function which has been obtained by using an exact and complete calculation of its con formations. The T, of the single PE chain is ab0ut 56K,and its Tg is about 115K. Then the Tg of the bulk PE is determined,which is about 187K,conforms quite well to the value of experment (195K). |
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| Keywords: | bulk second order temperature glass transition temperature |
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