摘要
采用MgCl2 TiCl4 β 二酮 MAO催化体系合成间规聚苯乙烯 (sPS)与等规聚丙烯 (iPP)共混复合材料 .对催化剂的活性和共混复合材料的组成随Al∶Ti和聚合温度的变化进行了表征 ,催化剂的活性可达 1.5× 10 5gB[molTi·h]- 1 ,sPS的含量可控制在 5 5 %～ 82 % .采用示差量热扫描仪 (DSC)和扫描电镜 (SEM)
Blends of syndiotactic, polystyrene (sPS) and isotactic polypropene (iPP) have been prepared using TiCl4/MgCl2/beta -diketone-MAO. The influences of AIM ratio and the polymerization temperature on the catalyst activity and the blend composition have been investigated. The catalyst shows a good activity of about 1.5 x 10(5) gB/ mol Ti.- h, and the sPS content can be controlled in the range of 55 wt% similar to 82 wt%. Thermal property and micromorphology have been studied with differential scanning calorimetry (DSC) and scanning electron microscopy (SEM).
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
2001年第5期594-598,共5页
Acta Polymerica Sinica
基金
国家重点基础研究发展规划项目 (G 19990 6 480 0 )
