Evidence from Infrared Ellipsometry for Covalent Bonding at a Polymer/Polymer Interface with Relevance to "Lock-Up" in Pressure-Sensitive Adhesive Laminates
نویسنده
چکیده
In a novel application, infrared spectroscopic ellipsometry is used to provide clear evidence for the formation of a covalent bond at a polymer/polymer interface. Specifically, there is evidence for the formation of a Si-O-C bond resulting from a reaction between the silyl (SiH) group of a poly(hydrogen methyl siloxane) crosslinker used in poly(dimethyl siloxane) and the carboxylic acid group of poly(acrylic acid). This covalent bond formation could explain the source of the "lock-up" that is sometimes found between acrylic pressure-sensitive adhesives and a silicone-coated release liner.
منابع مشابه
Published in Surface and Interface Analysis (2005) 37(1):33-41 Infrared Ellipsometry of Interdiffusion in Thin Films of Miscible Polymers
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