Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17723
Title: A thermal study on phase transition of high-energy electron-irradiated P(VDF-TrFE) 80/20 mol% copolymers
Authors: Guo, SS
Li, WP
Sun, CL
Wang, DH
Zhao, XZ
Lau, ST
Chan, HLW 
Keywords: Irradiation
P(VDF-TrFE)
Transition
TSDC
Issue Date: 2003
Publisher: Elsevier
Source: Materials chemistry and physics, 2003, v. 81, no. 1, p. 166-173 How to cite?
Journal: Materials chemistry and physics 
Abstract: Ferroelectric-paraelectric (F-P) phase transition behavior of P(VDF-TrFE) 80/20 mol% under high-energy electron irradiation is studied based on X-ray diffraction (XRD), differential scanning calorimetry (DSC) and thermally stimulated depolarization current (TSDC). Irradiation causes reduction of the polar domain size and expansion of non-polar crystalline size from all-trans to trans-gauche conformation in nanometer range, showing the coexistence of polar and non-polar phase. Both the Curie temperature Tc and melting temperature Tm decrease and exceptional endothermic peaks appear during the heating process in DSC thermograms, indicating the non-polar phase embedded in the crystalline region for the irradiated copolymers. The effect of non-polar phase is also observed in TSDC measurement, which shows prominent current change with irradiation dose in the low temperature range. It is believed that the coexistence of the non-polar and polar phases leads to the change of phase transition behavior in the irradiated P(VDF-TrFE) copolymers with a high VDF content.
URI: http://hdl.handle.net/10397/17723
ISSN: 0254-0584
EISSN: 1879-3312
DOI: 10.1016/S0254-0584(03)00189-5
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

3
Last Week
0
Last month
0
Citations as of Aug 11, 2017

WEB OF SCIENCETM
Citations

3
Last Week
0
Last month
Citations as of Aug 13, 2017

Page view(s)

39
Last Week
0
Last month
Checked on Aug 14, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.