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Title: Degradable Polymer Stars Based on Tannic Acid Cores by ATRP
Degradable polymers are crucial in order to reduce plastic environmental pollution and waste accumulation. In this paper, a natural product, tannic acid was modified to be used as a polymer star core. The tannic acid was modified with atom transfer radical polymerization (ATRP) initiators and characterized by 1H NMR, FT-IR, and XPS. Twenty-five arm polymer stars were prepared by photoinduced ATRP of poly(methyl methacrylate) (PMMA) or poly(oligo(ethylene oxide) methacrylate) (molar mass Mw = 300 g/mol) (P(OEO300MA)). The polymer stars were degraded by cleaving the polymer star arms attached to the core by phenolic esters under mild basic conditions. The stars were analyzed before and after degradation by gel permeation chromatography (GPC). Cytotoxicity assays were performed on the P(OEO300MA) stars and corresponding degraded polymers, and were found to be nontoxic at the concentrations tested.  more » « less
Award ID(s):
1726525
PAR ID:
10128305
Author(s) / Creator(s):
; ; ; ;
Date Published:
Journal Name:
Polymers
Volume:
11
Issue:
5
ISSN:
2073-4360
Page Range / eLocation ID:
752
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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