Interface composition and adhesion of glow-discharge-formed organo–tin polymers

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Abstract
The interface composition and bonding of thin organo–tin polymers, plasma-deposited on Al, are determined by AES, ESCA, and pull testing. A tin oxide species is formed between the bulk organo–tin polymer and the Al surface within an interfacial region of about 10 nm. This is evidenced by the change in the profile of the Sn-MNN Auger signal and by the energy shift of the Sn 3d3/2 and 3d5/2 peaks in the ESCA spectrum. No tin oxide formation is observed at the interface of organo–tin films deposited under similar conditions on stainless steel. The composition at the interface is also shown to depend on the position of the sample in the glow discharge during film deposition.

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