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In‐Reactor Compounding Metallocenic Isotactic Poly(propylene)/Nucleation Agent Compositions by Employing the Nucleation Agent as a Catalyst Support
Author(s) -
Yi QingFeng,
Wen XiaoJing,
Dong JinYong,
Han Charles C.
Publication year - 2007
Publication title -
macromolecular reaction engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 32
eISSN - 1862-8338
pISSN - 1862-832X
DOI - 10.1002/mren.200700005
Subject(s) - nucleation , compounding , tacticity , materials science , catalysis , dispersion (optics) , polymer , chemical engineering , polymer chemistry , polymerization , catalyst support , organic chemistry , composite material , chemistry , physics , optics , engineering
A nucleation agent, 1,3,2,4‐dimethylbenzylidene sorbitol (DMBS), was used as a support for C 2 ‐symmetric metallocene rac ‐Me 2 Si[2‐Me‐4‐Naph‐Ind] 2 ZrCl 2 . Propylene polymerization with the supported catalyst resulted in i ‐PP polymers with granular morphology. The role of a catalyst support ensures a good dispersion of the nucleation agent in the formed i ‐PP matrix. The employment of a nucleation agent as catalyst support provides a unique solution to in‐reactor compounding metallocenic i ‐PP/nucleation agent compositions.