Thermally Degradable Poly(n-butyl acrylate) Model Networks Prepared by PhotoATRP and Radical Trap-Assisted Atom Transfer Radical Coupling

Author:

Martinez Michael R.ORCID,Zhuang Ziye,Treichel Megan,Cuthbert JuliaORCID,Sun MingkangORCID,Pietrasik JoannaORCID,Matyjaszewski KrzysztofORCID

Abstract

Model poly(n-butyl acrylate) (PBA) networks were prepared by photoinduced atom transfer radical polymerization (photoATRP), followed by curing of polymer stars via atom transfer radical coupling (ATRC) with a nitrosobenzene radical trap. The resulting nitroxyl radical installed thermally labile alkoxyamine functional groups at the junctions of the network. The alkoxyamine crosslinks of the network were degraded back to star-like products upon exposure to temperatures above 135 °C. Characterization of the degraded products via gel permeation chromatography (GPC) confirmed the inversion of polymer topology after thermal treatment.

Funder

National Science Foundation

National Science Centre, Poland

Publisher

MDPI AG

Subject

Polymers and Plastics,General Chemistry

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