| 3GPa下高聚物固体的等温压缩行为 |
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| 引用本文： | 杨梅林,沈家.3GPa下高聚物固体的等温压缩行为[J].高分子学报,1989,0(1):86-92. |
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| 作者姓名： | 杨梅林 沈家 |
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| 作者单位： | 吉林大学化学系，吉林大学化学系，吉林大学原子和分子物理研究所，吉林大学原子和分子物理研究所 长春，长春 |
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| 摘 要： | 十种聚合物固体的等温压缩实验证明Tait方程和Murnaghan方程在0—3GPa范围内能够精确地描述非晶、半晶和结晶聚合物的P-V关系;Tait参数C_T=0.0894,Mumaghan参数C_M=0.1016为普适值。这两个方程的线性式用起来颇方便;当有压致松弛时可进行分段处理,能获得有关结构松弛的信息。对Bridgman多项式的适用性也进行了讨论。并计算了Gr(?)neisen参数。
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| 关 键 词： | 高压 聚合物状态方程 聚合物等温压缩 |
| 收稿时间： | 1987-02-24 |
ISOTHERMAL COMPRESSION BEHAVIOUR OF POLYMER SOLIDS UP TO 3 Gpa |
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| YANG Mei-lin,SHEN Jia-cong,CUI Qi,liang,ZOU Guang-tian.ISOTHERMAL COMPRESSION BEHAVIOUR OF POLYMER SOLIDS UP TO 3 Gpa[J].Acta Polymerica Sinica,1989,0(1):86-92. |
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| Authors: | YANG Mei-lin SHEN Jia-cong CUI Qi liang ZOU Guang-tian |
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| Institution: | Dcperatment of Chemistry; Jinlin University; Changchun; Institute of Atomic and Molecular Physics; Jilin University |
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| Abstract: | The applicabilities of Tait and Murnaghan equations of state and Bridgman polynomial to isothermal compressions of 10 polymer solids have been examined up to 3 GPa at room temperature. Tait and Murnaghan equations are equivalent and their linear forms (6) and (7) are very accurately for multisegmentally fitting the isothermal P-V date of amorphous, semi-crystaline polymer solids with the universal values CT= 0.0894 for Tait and CM= 0.1016 for Murnaghan parameter, Bridgman polynomial can also be used but is inconvenient when there are pressure-induced transitions. Equation is also presented for Gruneisen parameter from Tait and Murnaghan parameters. |
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| Keywords: | High pressure Equation of state of polymer Isothermal compression of polymers |
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