Premium
A New Synthetic Strategy for Polymeric Bromine Precursors: One‐Step Change from Bromine‐Containing Polymers to Functional Polymers
Author(s) -
Yu Gang,
Xu Qian,
Li Shuyi,
Gu Yu,
Lu Yanbing,
Xu Weijian,
Wu Ruoxi
Publication year - 2021
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.202000303
Subject(s) - copolymer , polymer , bromine , amphiphile , functional polymers , acrylate , polymer chemistry , chemistry , phenol , grafting , micelle , materials science , organic chemistry , aqueous solution
Postmodification methods are effective tools in preparing functional polymers, and novel end‐group reactions have attracted much attention from researchers for postmodification applications. Here, a new high‐efficiency postmodification method is proposed, which can change bromine‐containing polymers to functional polymers in one step. Phenol, 1‐hydroxynaphthalene, and 4‐(2‐phenyldiazenyl)‐phenol (AzoOH) are successfully grafted onto the polymeric branch chain of bromine‐containing polymers, i.e., homopolymer, bromoethyl methyl acrylate, (pBMEA) and amphiphilic block copolymer p(BMEA)‐ b ‐p(mPEG), with a high grafting rate that is near 100%. Also, the micelles of the postmodified amphiphilic block copolymer p(BMEA‐Azo)‐ b ‐p(mPEG) are broken up under ultraviolet irradiation. The proposed method can be used as a platform to prepare a variety of stimuli‐responsive polymeric nanoparticles.