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Initiated Chemical Vapor Deposition and Light-Responsive Cross-Linking of Poly(vinyl Cinnamate) Thin Films

Christy D Petruczok, Efe Armagan, Gozde Ozaydin Ince, Karen K Gleason

Macromol Rapid Commun. 2014 Aug;35(15):1345-50.

PMID: 24817405

Abstract:

The first vapor-phase deposition of poly(vinyl cinnamate) (PVCin) is reported. Initiated chemical vapor deposition (iCVD) is used to synthesize PVCin thin films with an average thickness of 100 nm. Free radical polymerization and cyclization reactions compete during the deposition process, with approximately 45% of the repeat units undergoing cyclization. Exposure to UV light (λ = 254 nm) induces dimerization (cross-linking) of the PVCin, which is quantified using spectroscopic techniques. Approximately 90% of the free cinnamate moieties are dimerized at a UV dose of 300 mJ cm(-2) . PVCin is also incorporated into a copolymer with N-isopropylacrylamide, which exhibits a characteristic change in hydrophilicity with temperature. The copolymer is selectively cross-linked through a mask, and reversible swelling of patterns with 30 μm resolution is demonstrated by submerging the film in water.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP3098928 Vinyl cinnamate Vinyl cinnamate 3098-92-8 Price
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