Butadiyne vapor deposition polymerization

In seeking new preparative routes to highly conjugated polymeric systems, we elected to investigate the polymerization of butadiyne. In this presentation we summarize previously unpublished work on a Ziegler-Natta polymerization of butadiyne and some of the more current developments on the thermal vapor deposition polymerization of this monomer. 

What is unique about the butadiyne system, in addition to being much more reactive than the substituted diacetylenes, is a surface selective polymerization from the vapor phase and an opportunity for characterization without interference from pendent groups. The surface selectivity of this vapor deposition polymerization on different substrates is in the order hydrocarbon (polyethylene) > fluorocarbon (teflon) > sodium chloride aluminum oxide as measured by quantity of deposited polymer per... 

The ambient temperature vapor deposition polymerization of butadiyne appears to involve an initial impregnation of the substrate film by the butadiyne monomer followed by its polymeri zation When a relatively thick (10 mil) teflon film on which polybutadiyne has been deposited is cut and the cross-section... 

The vapor deposition polymerization of butadiyne on host polymers involves a condensation and permeation of the substrate prior to pol3rmerization. 

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