In this section, you can access to the latest technical information related to the FUTURE project topic.

Main-chain/side-chain liquid crystalline polymer based on “jacketing” effect with different-length tails: Phase structures and spontaneous oriented behavior in film

Based on side-chain “Jacketing” effect, a series of main-chain/side-chain liquid crystalline polymers (MCSCLCPs) with different lengths of alkyl tail, poly (2,5-bis {[6-(4-alkoxy-4?-oxybiphenyl)-6-hexyl] oxycarbonyl} styrene) (denoted as P m, m represents the number of carbons in the alkyl tails and m?=?1, 2, 3, 4, 5, 6, 7, 8, 9, 10.) were synthesized through radical polymerization. Their phase structures were investigated using combined techniques, such as polarized optical microscope (POM), differential scanning calorimetry (DSC), one- and two-dimensional wide-angle X-ray diffraction (1D- and 2D-WAXD) and grazing-incidence wide angle X-ray scattering (GI-WAXS). It has been identified that the phase structure of P ms is strongly dependent on the length of alkyl tail. P ms (m???4) with short alkyl tail exhibit double ordered structure on the nanometer and subnanometer scales. P ms (m???5) with lengthened alkyl tail form typical smectic C phase. Furthermore, GI-WAXS result reveals that both smectic and hierarchically ordered structure can form preferred orientation on the naked silicon wafer because of the homeotropic property of the side-chain mesogens.

» Author: Jun Tang, Lei Tao, He-Lou Xie, Yang Guo, Bin Ni, Shu-Guang Yang, Hai-Liang Zhang, Er-Qiang Chen

» Reference: Polymer, Volume 143

» Publication Date: 09/05/2018

» More Information

« Go to Technological Watch



AIMPLAS Instituto Tecnológico del Plástico

C/ Gustave Eiffel, 4
(València Parc Tecnològic) - 46980
PATERNA (Valencia) - SPAIN

PHONE

(+34) 96 136 60 40

EMAIL

Project Management department - Sustainability and Industrial Recovery
life-future-project@aimplas.es