In order to stabilise the alignment of liquid crystalline main chain polymers obtained by photopolymerisation of liquid crystalline thiol-ene molecules, a crosslinkable liquid crystalline thiol-ene molecule was made. Upon polymerisation of mixtures of both molecules, polymers were formed which suffer less from domain formation due to phase separation, crystallisation and shrinkage compared to polymers made from non-crosslinkable thiol-ene molecules. Due to this stabilisation, materials with high birefringence could be prepared.
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Lub et al. (1999) studied this question.
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