Structure And Properties Of Solution Polymerized Butadiene Styrene Rubber

In this paper, Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TG) were used to test the microstructure of oil filled-SSBR with different content of 1,2-polymerized styrene butadiene rubber and non-oil filled-SSBR coupled with different terminal groups.And then 15 types of carbon black filled SSBR's physical and mechanical properties,dynamic viscoelastic properties were researched to investigate the effect according to the structure compared with two kinds of ESBR. And the impact of the isomerization about SSBRT2003R had been studied and compared with the BR. The results showed that:Among the SSBR with coupling terminal group, SL563 had the highest content of vinyl. T5800 contained the most content of trans-1,4. 2305 had the largest amount of cis-1,4. As for the SBR filled with carbon black N330, the tensile strength of 2305 was the highest. The tearing strength of T5800 was the highest. The modulus at 100%&300% of 2606 was the highest and its Payne effect was also higher than any other one. The peak of loss factor of 2305 was the largest and so as to the temperature of the peak.As to the SSBR with uncoupling terminal group, the cis-1,4 content of T2003 was the highest. The trans-1,4 content of 5025-0 was the highest and the content of vinyl was also the highest. For the SBR filled with carbon black, the rebound resilience of T2000R was best, The hardness and Payne effect of 2003 were the highest and 5025-0 had the highest 300% modulus,peak of loss factor, and temperature of the peak.Among the SSBR with highvinyl, The Tg of 2557A was the lowest, and 72606 had the highest molecular weight and its molecular weight distribution was the narrowest. About the SSBR filled with carbon black, 5025-1 had the largest storage modulus and the lowest peak of loss factor, however, 2564T had the lowest storage modulus and the highest peak of loss factor. Both 2564A and 5025-1 had the highest Payne effect.As to the SSBR with lowvinyl, the Tg of 1534 was the lowest. Among carbon black filled SSBR, The 2535L had the highest tensile strength and the lowest storage modulus, however, 1534 had the lowest abrasive resistance and Payne effect. 2530 had the highest Payne effect.The cis-trans isomerism on the system of BR/S/NS appeared regardless of the isothermal or non-isothermal vulcanizated process. And the degree of cis-trans isomerism of non-isothermal vulcanizated process was much deeper than isothermal vulcanizated process. The cis-trans isomerism of BR/S/NS was evident during the last stage of vulcanization.There was cis-trans isomerism on the system of SSBR/S/NS and the degree of cis-trans isomerism in the process of non-isothermal vulcanization was deeper than the isothermal vulcanization. The cis-trans isomerism of non-isothermal vulcanizated process on the system of SBR/S/NS was obvious during the later stage of vulcanization, however, the cis-trans isomerism of isothermal vulcanizated process was steady during the process of vulcanization. As to the process of non-isothermal vulcanization about SSBR/S/NS, The effect of accelerator to cis-trans isomerism was smaller than the effect of sulphur.