Effect of γ-Irradiation on the Molecular-Topological Structure of a Copolymer of Tetrafluoroethylene and Perfluoro(propyl vinyl ether)

被引：0

作者：

Olkhov, Yu. A. ^{[1
]}

Allayarov, S. R. ^{[1
]}

Tashmetov, M. Yu. ^{[2
]}

Dixon, D. A. ^{[3
]}

机构：

[1] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Moscow Oblast, Russia

[2] Acad Sci Uzbek, Inst Nucl Phys, Tashkent 100214, Uzbekistan

[3] Univ Alabama, Dept Chem, Box 870336, Tuscaloosa, AL 35487 USA

来源：

HIGH ENERGY CHEMISTRY | 2017年 / 51卷 / 03期

关键词：

gamma-irradiation; molecular-topological structure; tetrafluoroethylene and perfluoro(propyl vinyl ether) copolymer; THERMOMECHANICAL ANALYSIS; HEXAFLUOROPROPYLENE; PROTONS;

D O I：

10.1134/S0018143917030110

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The molecular-topological structure of a copolymer of tetrafluoroethylene and perfluoro(propyl vinyl ether) before and after gamma-irradiation has been studied for the first time. The pseudo-network structure of the copolymer contains an amorphous block and the crystalline segments of macromolecules serve as branching points. After gamma-irradiation to a dose of 15 to 2380 kGy, polyassociative cluster-type entities have appeared in the initial copolymer in place of the crystalline branching points with simultaneous structure amorphization and a decrease in the onset temperature of molecular flow.

引用

页码：151 / 155

页数：5

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