Structure and Dynamic Properties of Solution SBR Coupled with Tin Compounds
Structure and Dynamic Properties of Solution SBR Coupled with Tin Compounds
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DOI：
10.5254/1.3538245
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发表时间：
1990-03
影响因子：
1.5
通讯作者：
F. Tsutsumi;M. Sakakibara;N. Oshima
中科院分区：
文献类型：
--
作者：
F. Tsutsumi;M. Sakakibara;N. Oshima
研究了溶液丁苯橡胶的结构与炭黑填充丁苯橡胶硫化胶动态性能的关系。主要研究结果如下：1.聚合物链端引入TiN-碳键显著降低了溶聚丁苯橡胶硫化胶的滞后性。2.在锡-碳键结构中，丁二烯基锡键比丁二烯基锡-苯基键更能有效地降低电滞回线。3.溶液SBR与相对分子质量小于105的TiN化合物偶联，对降低滞后效果不明显。并对其动态性能改善的机理进行了探讨。结果表明，锡-碳键与炭黑的官能团反应生成了聚合物-炭黑键。从模型反应可以看出，炭黑上的苯醌基团参与了反应。
Abstract The relation between the structure of the Solution SBR and the dynamic properties of carbon-black-filled SBR vulcanizates have been studied. The results obtained were as follows: 1. The hysteresis of the Solution-SBR vulcanizates was reduced markedly by the introduction of tin—carbon bonds at the polymer chain end. 2. Among the structures of tin—carbon bonds, tin-butadienyl bonds were much more effective for the reduction of hysteresis than were tin—styryl bonds. 3. Solution SBR coupled with tin compounds with molecular weight of less than 105 was not so effective for the reduction of hysteresis. Furthermore, the mechanism of the improvement of dynamic properties was investigated. It was found that polymer—carbon-black bonds were formed through the reaction of tin—carbon bonds with the functional groups of carbon black. From model reactions, it is suggested that quinone groups on carbon black are involved.