The poly(diarylsilylene) copolymer mainchain helix in (Ar*2Si)x(Ar2S i)1−x [Ar* = 3-(S)-2-methylbutylphenyl, Ar = 4-butylphenyl, x = 0.2] undergoes a thermally driven inversion of helical screw sense with a transition temperature of −10 °C.
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Koe et al. (2000) studied this question.
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