Poly(Alkyl Glycidate Carbonate)s as Degradable Pressure‐Sensitive Adhesives. (9th January 2019)

• Record Type: Journal Article
• Authors: Beharaj, Anjeza; Ekladious, Iriny; Grinstaff, Mark W.
• Is Part Of: Angewandte Chemie. Volume 131:Number 5(2019)
• Page Start: 1421
• Page End: 1425
• Publication Date: 2019-01-09
• Subjects: Druckresponsive Haftung -- Glycerin -- Kohlendioxid -- Polyacrylate -- Polycarbonate; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201811894
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Insertion of CO2 into the polyacrylate backbone, forming poly(carbonate) analogues, provides an environmentally friendly and biocompatible alternative. The synthesis of five poly(carbonate) analogues of poly(methyl acrylate), poly(ethyl acrylate), and poly(butyl acrylate) is described. The polymers are prepared using the salen cobalt(III) complex catalyzed copolymerization of CO2 and a derivatized oxirane. All the carbonate analogues possess higher glass‐transition temperatures ( T g =32 to −5 °C) than alkyl acrylates ( T g =10 to −50 °C), however, the carbonate analogues ( T d ≈230 °C) undergo thermal decomposition at lower temperatures than their acrylate counterparts ( T d ≈380 °C). The poly(alkyl carbonates) exhibit compositional‐dependent adhesivity. The poly(carbonate) analogues degrade into glycerol, alcohol, and CO2 in a time‐ and pH‐dependent manner with the rate of degradation accelerated at higher pH conditions, in contrast to poly(acrylate)s.