Designing a New Class of Mechanophoric Polymer Based on Epoxy-Functionalized Rhodamine Derivative
Swadhin Chakraborty1, Koushik Bhattacharya1, Soumyadip Choudhury1
1Rubber Technology Centre, Indian Institute of Technology, Kharagpur, 721302, India.
Abstract:
Mechanophoric polymers are an interesting class of smart polymers which contains a special force-sensitive molecular motif that can lead to a chemical change within the polymer network in response to mechanical force. This investigation reports the design of a mechanophoric polymer based on epoxy-functionalized rhodamine via a monomeric approach. In this case, rhodamine (Rh) is modified with glycidyl methacrylate (GMA) through an epoxy-amine reaction to design a vinyl-functionalized multi-armed macromonomer (Rh-GMA), which is reacted with butyl acrylate (BA) to prepare the crosslinked polymeric film. The crosslinked polymeric film demonstrates mechanophoric properties under UV and stretching conditions.
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