학술논문
Stereospecific Group Transfer Polymerization of Methyl Methacrylate with Lewis-Acid Catalysis--Formation of Highly Syndiotactic Poly(methyl methacrylate).
Document Type
Article
Source
Polymer Journal; 2006, Vol. 38 Issue 9, p999-1003, 5p, 2 Diagrams, 1 Chart, 4 Graphs
Subject
Language
ISSN
00323896
Abstract
This article deals with a study on the formation of highly syndiotactic methyl methacrylate (MMA) during the stereospecific group transfer polymerization (GTP) of MMA with Lewis-acid catalysis. Purification of MMA was conducted through fractional distillation under reduced nitrogen pressure. Inclusion of a solution of initiator in CH2 Cl2 to the mixture of monomer, aluminum phenoxide, cocatalysts and a CH2 Cl2 under a dry nitrogen atmosphere was conducted to initiate a polymerization. The combination of EtA1(BHT)2 as the catalyst and Me3 SiI as the co-catalyst gave the highest activity in the GTP of MMA with 1-methoxy-1-(trimethylsiloxy)-2-methyl-1-propene in CH2 Cl2 .