In situ grafting onto solution polymerized styrene butadiene rubbers (SSBR) filled with silica via solid state method |
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| Authors: | Lili Wang Yonglai Lu Ximing Xie Fangyuan Zheng |
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| Affiliation: | 1. State Key Laboratory of Organic Inorganic Composites, Beijing University of Chemical Technology, Beijing, China;2. Key Lab of Beijing City on Preparation & Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing, China;3. China Petroleum & Chemical Company (Sinopec Corp.), National Engineering Research Center for Synthesis of Novel Rubber and Plastic Materials, Yanshan Branch of Beijing Research Institute of Chemical Industry, Beijing, China |
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| Abstract: | Grafting reaction of solution polymerized styrene butadiene rubbers (SSBR) and 3‐mercaptopropionic acid in situ was investigated in a solid state and a series of SSBR with different polarity degree were prepared through grafting 3‐mercaptopropionic acid onto SSBR chains in the process of mixing. The feasibility of solid‐phase grafting in situ (SPGiS) was verified by 1H‐nuclear magnetic resonance and Fourier transform infrared spectroscopy. Compared with unmodified SSBR/silica compounds, the SSBR/silica compounds with SPGiS exhibited preferable performance in silica dispersion, rubber‐filler interaction, and reinforcing efficiency. The scanning electron microscope and transmission electron microscope showed that silica presented better dispersion and smaller aggregates in the SSBR of SPGiS. Dynamical mechanical analysis of vulcanized rubber compounds with SPGiS showed that the wet skid resistance and the rolling resistance of SSBR/silica compounds were improved separately. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135, 46653. |
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| Keywords: | compatibilization functionalization of polymers synthesis and processing techniques viscosity and viscoelasticity |
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