ZOU You-si, PAN Rong-hua. THE CONTROL OF MOIECULAR WEIGHT AND LOW POLYDISPERSITY IN GROUP TRANSFER POLYMERIZATION[J]. Acta Polymerica Sinica, 1992,(2):241-245.
ZOU You-si, PAN Rong-hua. THE CONTROL OF MOIECULAR WEIGHT AND LOW POLYDISPERSITY IN GROUP TRANSFER POLYMERIZATION[J]. Acta Polymerica Sinica, 1992,(2):241-245.DOI:
Group trahsfer polymerization of methacrylates with 1-trimethyl siloxy cyclohexene (TSCH)
1-(N
N-dimethyl amino)-1-trimethylsiloxy butene-1 (DMTB) and ethyl 2-ethyl-3-ethoxy-3-trimethyl siloxy acrylate (EETSA) as initiators
Bu4NH(C6H5CO2)2 and Et4NHF2 as catalysts was investigated. The dependence of the control of molecular weight and low po-lydispersity on the catalyst concentration
monomer/initiator ratio
reaction temperature
solvent
steric hindrance of methacrylates
the course of the reaction has been studied. Polydi-spersity decreases with decreasing of induction periods. When Et4NHF2 concentration is 0.008-0.012 mol/L