Effect of low molar mass liquid crystal and lubricant on miscibility and thermal properties of syndiotactic polystyrene blends

This research concerned with the miscibility and thermal properties of syndiotactic polystyrene (SPS) blended with several polymers such as poly (α-methyl styrene)--PaMS, poly(ethyl methacrylate)--PEMA, poly(n-butyl methacrylate)--PBMA, poly(cyclohexyl acrylate)--PCHA, and poly(cis-isoprene)--PIP. T...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied polymer science 2009-11, Vol.114 (4), p.2053-2059
Main Authors: Pahupongsab, Pichet, Thongyai, Supakanok, Wacharawichanant, Sirirat, Praserthdam, Piyasan
Format: Article
Language:English
Subjects:
Applied sciences
Blends
Exact sciences and technology
liquid crystal
Liquid crystals
lubricant
Lubricants
miscibility
Organic polymers
Physicochemistry of polymers
Polymer blends
Polymerization
Polystyrene resins
Preparation, kinetics, thermodynamics, mechanism and catalysts
Spark plasma sintering
syndiotactic polystyrene
Syndiotacticity
Thermal properties
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This research concerned with the miscibility and thermal properties of syndiotactic polystyrene (SPS) blended with several polymers such as poly (α-methyl styrene)--PaMS, poly(ethyl methacrylate)--PEMA, poly(n-butyl methacrylate)--PBMA, poly(cyclohexyl acrylate)--PCHA, and poly(cis-isoprene)--PIP. The SPS synthesized by using metallocene catalyst and modified-methylaluminoxane (MMAO) as cocatalyst. From the experimental results, it was found that the SPS can be miscible with PaMS, PEMA, PBMA, PCHA, and PIP. Furthermore, the effects of the addition of low molar mass liquid crystal (cyclohexyl-biphenyl-cyclohexane, CBC33) and lubricant (glycerol monostearate, GMS) on thermal properties of the blended polymers with SPS are concerned. Both CBC33 and GMS can lower the crystallization temperature (Tc) of the blend and can also slightly lower the melting temperature (Tm) of the blends. This might be because of the higher mobility of SPS molecules induced the separation from the crystal both in the case of the depression of Tc or Tm. The higher mobility of the blends happened together with the further reduction of the melt viscosity of the blends according to CBC33 that can be proven by Motong et al. in 2008 (Motong et al., J Appl Polym Sci 2008, 107, 1108).
ISSN:0021-8995
1097-4628
1097-4628
DOI:10.1002/app.30751