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

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

Model poly(<i>n</i>-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 th...

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Bibliographic Details
Main Authors: Michael R. Martinez, Ziye Zhuang, Megan Treichel, Julia Cuthbert, Mingkang Sun, Joanna Pietrasik, Krzysztof Matyjaszewski
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Polymers
Subjects:
ATRP
ATRC
network
degradable
polyacrylate
nitroxide
Online Access:https://www.mdpi.com/2073-4360/14/4/713
Description
Summary:Model poly(<i>n</i>-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.
ISSN:2073-4360

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