摘要
用^(13)C-NMR技术研究了Lewis碱对聚丙烯等规和无规构型、立规度和数均序列长度的影响。
In this paper, effect of Lewis bases on the configuration of isotactic and atactic polypropylene, the tacticity of triad and pentad as well as the number average sequence length have been studied by 13C-NMR spectra. The effect of Lewis bases on raising the stereospecifi-city of polypropylene structure for Lib, Lo, Li, Ln, has been obtained, the isotacticity measured using extraction with boiling-heptane has been explained from the configuration of polypropylene.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
1989年第2期236-241,共6页
Acta Polymerica Sinica
关键词
LEWIS碱
聚丙烯
构型
Lewis bases,13C-NMR spectra, Structure
