The formation of liquid‐crystalline structure in hydroxypropyl cellulose (HPC) in the solvent 2‐hydroxyethyl methacrylate (HEMA) is described. In addition, an attempt is made to preserve the ordered structure of HPC in a composite by polymerizing the solvent. Optical evidence, including refractive index, absorption spectra, polarized‐light microscopy, and x‐ray diffraction, indicates that HPC‐HEMA solutions exhibit the cholesteric nature of the mesophase over limited concentration and temperature ranges. The polymer composite (HPC‐PHEMA) prepared from the liquid‐crystalline solution by polymerization of HEMA is endowed with anisotropic organization reflecting liquid‐crystalline character. Detailed morphological observations of the composite by electron microscopy show many round particles composed of parallel‐stacked, disklike lamellae, and aggregate bodies developed by coalescence of neighboring particles.
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Nishio et al. (1985) studied this question.
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