![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
We report here pressure studies on a side-chain liquid crystalline polymer which exhibits a reentrant nematic phase at atmospheric pressure. It reveals that the two nematic transitions behave differently.
The N-SAd transition is shifted towards higher transition temperatures whereas the SAd-NRe transition remains invariant with increasing pressure. In the smectic phase, a significant increase of the order parameter and of the correlation length of the smectic layers is observed. The results are obtained using a pressure cell specifically designed for neutron diffraction.