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Z. Czech, R. Pełech

Thermal degradation of acrylic pressure-sensitive adhesives based

on copolymers of 2-ethylhexyl acrylate and acrylic acid (in English)

Polimery 2009, No 11/12, 828


DOI: dx.doi.org/10.14314/polimery.2009.828

Summary

The thermal degradation of acrylic pressure-sensitive adhesives (PSAs) based on copolymers of 2-ethylhexyl acrylate and acrylic acid has been conducted at about 230°C using pyrolysis-gas chromatography. The types and amounts of the pyrolysis products give important information about of thermal degradation of acrylic pressure-sensitive adhesives and the mechanism of their thermal degradation. It was observed that during the thermal degradation of 2-ethylhexyl acrylate and acrylic acid copolymers such main decomposition products as corresponding alken (2-ethylhexen-1), corresponding alcohol (2-ethylhexanol-1) and unsaturated monomers such as 2-ethylhexyl acrylate and 2-ethylhexyl methacrylate were formed.


Key words: acrylic pressure-sensitive adhesives, solution polymerization, pyrolysis, thermal degradation, 2-ethylhexyl acrylate/acrylic acid copolymer


e-mail: psa_czech@wp.pl


Z. Czech, R. Pełech

Thermal degradation of acrylic pressure-sensitive adhesives based on copolymers of 2-ethylhexyl acrylate and acrylic acid (in English)