摘要
The conformation of polymer chains and the crystal forms of syndiotactic polystyrene ( s PS)/isotactic polypropene ( i PP) blends,prepared by reactor polymerization were investigated.Results indicated that the crystal forms of s PS and i PP in blends were similar to those in neat polymers.Both s PS and i PP in blends existed in α forms,which were not affected by blending.The results obtained from X ray and FTIR measurements show that the crystallinity of s PS and i PP was reduced by blending.With increasing the s PS content,especially over 75%,the crystallinity of s PS and dimension of s PS crystals were evidently reduced.
The conformation of polymer chains and the crystal forms of syndiotactic polystyrene (sPS)/isotactic polypropene (iPP) blends, prepared by reactor polymerization were investigated. Results indicated that the crystal forms of sPS and iPP in blends were similar to those in neat polymers. Both sPS and iPP in blends existed in a forms, which were not affected by blending. The results obtained from X-ray and FTIR measurements show that the crystallinity of sPS and iPP was reduced by blending. With increasing the sPS content, especially over 75%, the crystallinity of sPS and dimension of sPS crystals were evidently reduced.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
2001年第6期796-798,共3页
Acta Polymerica Sinica
基金
国家重点基础研究发展规划项目 (G19990 6 480 0 )
