THERMAL-ANALYSIS OF PRODUCTS OBTAINED UPON OZONOLYSIS OF POLYBUTADIENE RUBBERS IN SOLUTION

被引:3
作者
ANACHKOV, M
RAKOVSKY, S
STOYANOV, A
机构
[1] Institute of Kinetics and Catalysis, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
关键词
OZONOLYSIS; POLYBUTADIENE; THERMAL ANALYSIS;
D O I
10.1080/00914039208035433
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The thermochemical properties of ozonides, prepared from two polybutadiene rubbers of different structure, are studied via differential scanning differential scanning calorimetry. An estimation is made of the enthalpy of the thermal decomposition (=370 kJ/mol), the activation energy (90–120 kJ/mol) and the reaction order (=0.73). On the basis of the differences in the respective values of some parameters characteristic of the kinetics of the thermal decomposition, it is suggested that the cis-ozonide species exhibit higher thermal stability in comparison with the trans-form. © 1992, Taylor & Francis Group, LLC. All rights reserved.
引用
收藏
页码:307 / 309
页数:3
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