Stimuli‐Directed Colorimetric Interconversion of Helical Polymers Accompanied by a Tunable Self‐Assembly Process |
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Authors: | Rafael Rodríguez Emilio Quio Ricardo Riguera Flix Freire |
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Affiliation: | Rafael Rodríguez,Emilio Quiñoá,Ricardo Riguera,Félix Freire |
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Abstract: | Interconversion between extended and bent structures at the pendant groups of a chiral polyene framework poly(phenylacetylene) with (R)‐(2‐methoxy‐2‐phenylacetyl)glycine residues linked to 4‐vinylanilines] allows the reversible colorimetric transformation from stretched to compressed helical cis‐transoid polyenic structures through manipulation of the flexible spacer. This transformation generates either organogels (stretched helical form) or nanoparticles (compressed helical form) under the control of polar/low polar stimuli respectively and opens the way to the development of new sensors and stimuli‐sensitive materials based on these concepts. |
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Keywords: | colorimetric sensors gel helical polymers poly(phenylacetylene) self‐assembly |
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