Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization;
Key Laboratory of Rubber-plastics(Ministry of Education);
School of Polymer Science and Engineering;
Qingdao University of Science and Technology;
Qingdao 266042;
China;
Shandong Huaju Polymer Material Co.;
Ltd.;
Binzhou 256500;
China;
Trans-1; 4-poly(butadiene-co-isoprene)copolymer rubber; Nature rubber; Blends; Molecular weight; Fatigue resistance;