Hybrid Poly(hydroxy urethane)s: Folded-Sheet Morphology and Thermoreversible Adhesion.

ABSTRACT: Hybrid poly(hydroxy urethane)s (PHUs) are synthesized by copolymerizing aromatic/alicyclic cyclic carbonates with a polyether amine via addition polymerization. They result into polymers with an average molecular weight of 10 kDa and exhibit solubility in common organic solvents. The hybrid PHUs display T _g up to 18 °C. PHUs are enriched with multiple H-bonded interactions and they are assessed using temperature-dependent ¹H NMR and Fourier-transform infrared studies. PHUs possess folded-sheet morphology with nanogap between folds and nanowidth between chains. The secondary interactions bestow thermoreversible property to PHUs, and they display good adhesion to both polar (Al-Al) and nonpolar (HDPE-HDPE) substrates. Hybrid PHUs show improved optical transparenc

SUBMITTER: Sukumaran Nair A 

PROVIDER: S-EPMC6705089 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature