Pi??conjugated chain extenders for the synthesis of optoelectronic segmented polyurethanes

CP Harvey, JD Tovar

Index: Harvey, Christopher P.; Tovar, John D. Journal of Polymer Science, Part A: Polymer Chemistry, 2011 , vol. 49, # 22 p. 4861 - 4874

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Citation Number: 2

Abstract

Abstract The optical properties of mechanochromic materials change under mechanical stress. Segmented polyurethanes are elastomers composed of amorphous, saturated chain soft segments, and rigid pi-conjugated hard domains. Within aggregates of hard domains pi– pi interactions may form and result in perturbation of the optoelectronic properties of the system. Disruption and restoration of these electronic interactions within the material may ...