Abstract
To study the formation and properties of Langmuir-Blodgett membranes of aromatic diacetylenes, 4 novel diacetylenics amphiphiles were synthesized, and their multilayer membranes were prepared and photopolymerization was carried out. 13-Phenyl-10,12-tridecynoic acid did not give a stable isotherm, and the structure appeared not proper for topochemical polymerization of the diacetylenic group, but substitution on the para-position of the acids stabilized the isotherm giving multilayer Y type membranes whose diacetylene groups readily polymerized on irradiation of UV light. There was a clear relationship between electronic density of aromatic groups, absorption maxima of polydiacetylene films and resistance to radiation.
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