Synthesis and evaluation of bio-based elastomer based on diethyl itaconate for oil-resistance applications  

作　　者：Weiwei Lei He Qiao Xinxin Zhou Wencai Wang Liqun Zhang Runguo Wang Kuo-Chih Hua 

机构地区：[1]State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology [2]Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials,Beijing University of Chemical Technology [3]Engineering Center of Ministry of Education on Elastomer Materials Energy Saving and Resource Utilization,Beijing University of Chemical Technology [4]Goodyear Innovation Center, Goodyear Tire & Rubber Co.

出　　处：《Science China Chemistry》2016年第11期1376-1383,共8页中国科学（化学英文版）

基　　金：supported by the National Basic Research Program of China (2015CB654700);the National Natural Science Foundation of China (50933001);the State Key Program of National Natural Science of China (51333004);the Innovative Research Groups of the Natural Science Foundation of China (51221002);the Goodyear Tire & Rubber Company

摘　　要：Bio-based elastomer poly(diethyl itaconate-co-isoprene)(PDEII) was designed and synthesized by redox-initiated emulsion polymerization from diethyl itaconate and isoprene with mass ratio of 20:80, 40:60, 60:40 and 80:20. The number-average molecular weights of PDEII exceeded 140000 with relatively high yields. The physical properties of PDEII, such as glass transition temperatures and thermostability, were comparable with conventional synthetic elastomers and can be readily tuned by varying the ratio of diethyl itaconate to isoprene. The interaction between silica and PDEII macromolecules was effectively enhanced with the increase of diethyl itaconate content by endowing high polarity. The oil-resistance relevant properties of silica/PDEII80(80% diethyl itaconate, 20% isoprene) such as retention of tensile strength, retention of elongation at break and change in volume even surpass those of silica/NBR 240 S after soaked in ASTM 3# oil at different temperatures.Bio-based elastomer poly（diethyl itaconate-co-isoprene）（PDEII） was designed and synthesized by redox-initiated emulsion polymerization from diethyl itaconate and isoprene with mass ratio of 20：80, 40：60, 60：40 and 80：20. The number-average molecular weights of PDEII exceeded 140000 with relatively high yields. The physical properties of PDEII, such as glass transition temperatures and thermostability, were comparable with conventional synthetic elastomers and can be readily tuned by varying the ratio of diethyl itaconate to isoprene. The interaction between silica and PDEII macromolecules was effectively enhanced with the increase of diethyl itaconate content by endowing high polarity. The oil-resistance relevant properties of silica/PDEII80（80% diethyl itaconate, 20% isoprene） such as retention of tensile strength, retention of elongation at break and change in volume even surpass those of silica/NBR 240 S after soaked in ASTM 3# oil at different temperatures.

关 键 词：bio-based elastomer synthesis oil-resistance 

分 类 号：TQ334[化学工程—橡胶工业]