Abstract

The linear UV dichroism was studied for 18 compounds encased in stretched polyethylene (PE) films and analyzed to establish the main physical factor responsible for molecular orientation. When the "shape-model" and "polarizability-model" were compared, it was found that polarizability is a more important factor than the shape of molecules. The specific relative orientation between small molecules and polymer chains is determined by the minimum in the interaction energy, i.e., the balance of repulsive and attractive forces.

Conversion of retardation dispersion in self-organized smectic reactive mesogen compound and its dependence on the UV polymerization temperature and the molecular orientation

Jinyoung Jeong, Yu-Jin Choi, Kwang-Un Jeong, and Ji-Hoon Lee
Opt. Express 26(8) 10661-10668 (2018)

Physical interpretation of Mueller matrix spectra: a versatile method applied to gold gratings

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