Mechanical Properties of Polymer/Liquid Crystal Films Elaborated by Electron Beam and UV Radiation

The thermomechanical properties of electron beam (EB) and ultraviolet (UV) cured TPGDA (tripropyleneglycol diacrylate)/liquid crystal (LC) blends were the subject of static and dynamic analysis. In the glassy region of the LC, a very strong temperature dependence on the polymer storage modulus was f...

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Bibliographic Details
Published in:Molecular Crystals and Liquid Crystals 2011-09, Vol.546 (1), p.1604
Main Authors: Berrayah, A, Zair, L, Olivier, A, Maschke, U
Format: Article
Language:English
Subjects:
Liquid crystal polymers
Mechanical properties
Phase transitions
Temperature effects
Ultraviolet radiation
Online Access:Get full text
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Summary:The thermomechanical properties of electron beam (EB) and ultraviolet (UV) cured TPGDA (tripropyleneglycol diacrylate)/liquid crystal (LC) blends were the subject of static and dynamic analysis. In the glassy region of the LC, a very strong temperature dependence on the polymer storage modulus was found for EB-cured networks in the range of compositions 40-60 weight.-% of LC. Above the LC glass transition temperature (T ...), the LC behaves like a plasticizing agent. Below T ... of the LC, the LC reinforces the polymer. In the case of the UV-cured system, the effect of plasticizing of the LC remains dominant from -100 to +100...C. (ProQuest: ... denotes formulae/symbols omitted.)
ISSN:1542-1406
1527-1943