Hydrosilylation of solution-polymerized styrene-butadiene rubber with triphenylsilane

IF 4.5 3区工程技术 Q1 CHEMISTRY, APPLIED

Reactive & Functional Polymers Pub Date : 2025-03-11 DOI:10.1016/j.reactfunctpolym.2025.106258

Hanyu Li , Ling Liu , Yuxi Zhang , Xue Wang , Junquan Meng , Lin Xu , Liqun Zhang

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引用次数: 0

Abstract

Functionalized solution-polymerized styrene-butadiene rubber (SSBR) is widely applied in green tire because functional groups enhance interaction with filler to promote the dispersion. In this paper, functionalized SSBR is synthesized by the hydrosilylation of SSBR using triphenylsilane (TPS) and catalyst chloroplatinic acid. The influence of different reaction conditions on hydrosilylation of SSBR is investigated and kinetic mechanism is analyzed. Induction period is necessary for catalyst to form ligand compound with 1,2-butadiene units to generate the real catalytic active center. The reaction is zero order for TPS concentration and first order for catalyst concentration. The higher the temperature, the higher reaction rate of hydrosilylation. The activation energy of the reaction is determined to be 16.63 kJ/mol. These findings provide novel insights into the mechanism of hydrosilylation and the catalytic behavior of platinum-based systems in the functionalization of rubber.

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来源期刊

Reactive & Functional Polymers 工程技术-高分子科学

CiteScore

8.90

自引率

5.90%

发文量

259

审稿时长

27 days

期刊介绍： Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers. Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.