Hydrodynamic properties of poly(1-trimethylsilyl-1-propyne) molecules in solutions

被引：0
|
作者：
Shtennikova, IN [1 ]
Kolbina, GF
Korneeva, EV
Khotimskii, VS
Litvinova, EG
机构：
[1] Russian Acad Sci, Inst Macromol Cpds, St Petersburg 199004, Russia
[2] Russian Acad Sci, Topchiev Inst Petrochem Synth, Moscow, Russia
来源：
RUSSIAN JOURNAL OF APPLIED CHEMISTRY | 1998年 / 71卷 / 08期
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D O I：
暂无
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A new organosilicon polymer poly(1-trimethylsilyl-1-propyne) was synthesized from disubstituted polyacetylene with the use of the catalytic system TaCl5/BuLi. Hydrodynamic properties of samples and fractions of the polymer in solutions were studied over a 70-fold range of molecular weight by forward diffusion, high-speed sedimentation, viscometry, and gel-permeation chromatography. The temperature dependence of the intrinsic vicsosity in various solvents were studied. Possible structural factors affecting the conformation of poly(1-trimethylsilyl-1-propyne) molecules are considered.
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页码：1426 / 1431
页数：6
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