Progress of synthesis and application of trans-1,4-polyisoprene |
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Authors: | Jing-She Song Bao-Chen Huang Ding-Sheng Yu |
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Affiliation: | 1. Department of Polymer Science and Engineering, Qingdao Institute of Chemical Technology, Qingdao, Shandong, 266042, People's Republic of China;2. Polymer Science and Engineering Institute, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China |
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Abstract: | A new technology to synthesize trans-1,4-polyisoprene (TPI) with bulk precipitation polymerization in the presence of a supported Ti catalysts was introduced. The termination of polymerization, stabilization of the polymer, and the adjustment of the molecular weight of TPI and its quality index are discussed. The blending and covulcanization of TPI with natural rubber (NR), styrene butadiene rubber (SBR), and butadiene rubber (BR) were studied. The blending compounds had outstanding dynamic mechanical properties, especially the rolling resistance, heat buildup, and wet skid resistance. Tread and sidewall compounds that contained TPI had a higher modulus, longer fatigue life, better abrasion resistance, lower rolling resistance, and lower buildup, which indicates that TPI is suitable for high-performance tire. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 81–89, 2001 |
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Keywords: | trans-1,4-polyisoprene bulk precipitation polymerization dynamic mechanical properties tread stock high-performance tire |
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