Synthesis and Properties of a Novel Polyimide with Side Chain Containing Biphenyl Unit

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A novel biphenyl side-chained diamine with alkyloxy spacer and alkyloxy tail,4'-butoxy-4-(3,5-diaminobenzoyloxy)hexyloxybiphenyl(C6BBC4),was synthesized and characterized by FTIR and 1 H NMR.A series of polyimide(PI) films with different side chain co
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