Synthesis of Four-Armed Star-Shaped Poly(N,N-Diethylacrylamide) by Group Transfer Polymerization in the Presence of Hydrosilylane

摘要

The core-first synthesis of four-armed star-shaped poly(N,N-diethylacrylamide) with predicted molecular weights and narrow molecular weight distributions (Mw/Mn=1.17) was carried out by the Tris(pentafluorophenyl)borane (B(C_6F_5)_3) -catalyzed group transfer polymerization (GTP) using ethyldimethylsilane (EtMe_2SiH) as hydrosilylane. The optimal ratio of the precursor to the hydrosilylation agent was 1:4.2.