A brush with success: Responsive brushes composed of poly(N-isopropylacrylamide) grafted onto a poly(thiophene) backbone display the highest water solubility ever reported for a neutral poly(thiophene) as well as temperature-dependent optical properties and water solubilities (see picture). The graft polymer exhibits shifts in the π–π* transition of the poly(thiophene) backbone near the collapse temperature of the poly(N-isopropylacrylamide) chains.
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Balamurugan et al. (2005) studied this question.
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