Abstract
Meta-alca-1,3-diynylbenzoic acids with different chain lengths were synthesized and the formation of Langmuir-Blodgett (LB) membranes was studied. Benzoic acids with alkyl chain length greater than 8 formed stable monolayers while those with 4 and 6 did not form good condensed phases. Multilayer films were irradiated with UV light and the diacetylenic groups polymerized to give polydiacetylene LB films having absorption maxima at around 640 nm.
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