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Synthesis of well‐defined azido and amino end‐functionalized polystyrene by atom transfer radical polymerization
Author(s) -
Matyjaszewski Krzysztof,
Nakagawa Yoshiki,
Gaynor Scott G.
Publication year - 1997
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.1997.030181209
Subject(s) - atom transfer radical polymerization , polystyrene , polymer chemistry , terephthaloyl chloride , chemistry , radical polymerization , amide , polymerization , azide , end group , bromide , functional polymers , polymer , reversible addition−fragmentation chain transfer polymerization , living free radical polymerization , condensation polymer , organic chemistry
Mono and difunctional polystyrenes containing active halogenated end groups were prepared by atom transfer radical polymerization (ATRP). Substitution reactions were explored to convert the halogen termini to azido groups, followed by readuction to form the amino functional polymer. Quantitative conversion of the end groups was observed in each transformation reaction. 1 H NMR demonstrated the formation of the azide from the bromide functionality without elimination. The difunctional α,ω‐diaminopolystyrene was reacted with terephthaloyl chloride in a condensation process to produce chain‐extended polystyrene containing amide bonds along the polymer backbone.