文章摘要
锡偶联溶聚丁苯橡胶塑炼过程的力化学研究
Study on mechanochemistry of tin-coupled SSBR during mastication
  
DOI：
中文关键词: 锡偶联SSBR  ESBR  塑炼  相对分子质量  相对分子质量分布  力化学稳定性
英文关键词: tin-coupled SSBR  ESBR  mastication  molecular weight  molecular weight distribution  mechanochemical stability
基金项目:国家自然科学基金资助项目(27674013)
作者单位
贾红兵 南京理工大学高分子系 
吉庆敏 南京理工大学高分子系 
金志刚 南京理工大学高分子系 
张士齐 南京理工大学高分子系 
吴金声 北京燕山石化公司研究院 
刘青 北京燕山石化公司研究院 
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中文摘要:
      研究了国产锡偶联溶聚丁苯橡胶 (SSBR)在加工过程中相对分子质量、相对分子质量分布及微观结构的变化 ,并与乳聚丁苯橡胶 (ESBR)进行了比较。结果表明 ,在塑炼过程中 ,SSBR和ESBR相对分子质量的下降速度与初始相对分子质量有关 ,相对分子质量存在下限值 ;SSBR的相对分子质量分布曲线由双峰转化成单峰 ,并变窄 ;SSBR和ESBR的主链断裂 ,产生过氧自由基 ,SSBR的塑炼过程力化学稳定性优于ESBR。
英文摘要:
      The effects of modification on the molecular weight(Mw) and the molecular weight distribution(MWD), as well as the microst ructure of tin-coupled SSBR and ESBR were investigated.The results showed that during the mastication , the decreasing velocity of Mw for both SSBR and ESBR depended on their initial Mw, and there was a lower limit for their Mw;the bipeaks shifted to single peak in the SSBR MWD curve and the MWD became more narrow;the main chains of both SSBR and ESBR broke down to give off the peroxy radicals;and the mechanochemical stability of SSBR was superior to that of ESBR.
Author NameAffiliation
JIA Hong-bing Nanjing University of Science and Technology 
JI Qing-min Nanjing University of Science and Technology 
JIN Zhi-gang Nanjing University of Science and Technology 
ZHANG Shi-qi Nanjing University of Science and Technology 
WU Jin-sheng Beijing Yanshan Petrochemical Company 
LIU Qing Beijing Yanshan Petrochemical Company 
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