Open AccessSynthesis of functionalized polyisobutylene and its block copolymers with D,L-lactide
Author(s) -
П. А. Никишев,
Evgenii Ksendzov,
Дмитрий Иванович Шиман,
Л. В. Гапоник,
Сергей Викторович Костюк
Publication year - 2019
Publication title -
žurnal belorusskogo gosudarstvennogo universiteta. himiâ
Language(s) - English
Resource type - Journals
eISSN - 2617-3980
pISSN - 2520-257X
DOI - 10.33581/2520-257x-2019-2-40-50
Subject(s) - copolymer , lactide , isobutylene , polymer chemistry , polymerization , gel permeation chromatography , materials science , anisole , chemistry , organic chemistry , polymer , catalysis , composite material
Method of reactive polyisobutylene modification by various alkoxybenzenes (anisole and 4-phenoxybutanol) was proposed to form functionalized polyisobutylenes. Polymerization of D,L-lactide was explored on the 4-phenoxybutanol/1,5,7-triazabicyclo[4.4.0]dec-5-ene system. It led to determination of optimal conditions for gaining of poly(isobutylene-b-D,L-lactide). Such copolymers (Mn = 14 300 g/mol and Mn = 36 600 g/mol, Mw / Mn ≤ 2.5) which were obtained by the polymerization of D,L-lactide on polyisobutylene macroinitiator shows microphase ordering. Formation of the block copolymers is confirmed by 1Н NMR spectroscopy, gel permeation chromatography, and scanning electron microscopy.