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Anisotropic and Self‐Healing Copolymer with Multiresponsive Capability via Recyclable Alloy‐Mediated RDRP
Author(s) -
Mohammad Sk Arif,
Dolui Subrata,
Kumar Devendra,
Alam Md. Mehboob,
Banerjee Sanjib
Publication year - 2021
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.202100096
Subject(s) - copolymer , methacrylamide , materials science , polymerization , self healing , polymer chemistry , chemical engineering , polymer , composite material , medicine , acrylamide , alternative medicine , pathology , engineering
A novel triple stimuli sensitive block copolymer is prepared by magnetically separable and reusable (up to multiple cycles) Ni–Co alloy nanoparticles mediated reversible deactivation radical polymerization (RDRP) at 25 °C, that responds to changes in temperature, pH, and light. Design of this block copolymer constitutes a temperature‐sensitive N ‐isopropylacrylamide (NIPAM), an acid‐sensitive lysine methacrylamide (LysMAM), and a light responsive umbelliferone (UMB) end group. The stimuli response, in response to one stimulus as well as combinations of stimuli, has been evaluated. Responsiveness to light allows the construction of self‐healing materials. Density functional theory calculations rationalize the underlying mechanism of the polymerization.