Some Research of Non-Petroleum Based Synthetic Elastomers

Wednesday, October 12, 2016: 8:00 AM
Rm 304-5 (David L. Lawrence Convention Center )
Liqun Zhang1, Runguo Wang2 and Junfeng Chu2, (1)State Key Laboratory of Organic-Inorganic Composites,Beijing University of Chemical Technology, Beijing, China, (2)Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing, China
Because of their unique high elasticity, elastomers, generally acknowledged as strategic materials, find wide applications in industry, national defence, and also in our daily life. However, the basic building blocks of synthetic rubber, such as butadiene, styrene, isoprene, chloroprene, etc., are currently mainly derived from crude oil. Consequently, the elastomer industry is a major energy and raw material consumer, with excessive waste and effluent generation. In order to tackle this global scientific issue, a new strategy is put forward to prepare polymeric materials from non-petroleum based resource. Large-scaled bio-based monomers, such as sebacic acid, itaconic acid, succinic acid, 1,3-propanediol, 1,4-butanediol and vegetable oils were chosen to generate polyester typed elastomer1,2, poly(di-alkyl itaconate-co-diene) typed elastomer3,4, and poly(epoxidized soybean oil-co-decamethylene diamine) typed elastomer5, which are linear and noncrystalline elastomers with low glass transition temperature (Tg) and crosslinkable groups. Nanoparticles such as silica, carbon black , layered silicates, and even graphene were then introduced into these elastomer matrices to successfully realize the great strengthening and improve environmental stability. Furthermore, silicone rubber is also important non-petroleum based rubber. Methylvinyl silicone rubber (MVQ) with different vinyl contents was synthesized by anionic ring-opening polymerization. With chain structure design and multiple reaction platform of vinyl group, epoxidized silicone rubber, carboxylic silicone rubber and esterified silicone rubber were prepared by modifying the vinyl group on MVQ6. Compared with traditional silicone rubber, modified silicone rubbers possess higher glass-transition temperature, better oil resistance and hydrophilicity, and stronger interaction with polar fillers. More importantly, modified silicone rubbers will not crystallize at low temperature.

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