Open AccessDIELECTRIC PROPERTIES OF POLYBIS-(p-TOLUENE SULFONATE)-2,4-HEXADIYNE-l,6-DIAL (PTS) SINGLE CRYSTAL
Author(s) -
Yang Ruan,
Guangshe Li,
Youjun Chen,
Pingsheng He
Publication year - 1987
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.36.1503
Subject(s) - dielectric , toluene , materials science , sulfonate , phase transition , anomaly (physics) , single crystal , crystal (programming language) , phase (matter) , condensed matter physics , crystallography , chemistry , physics , organic chemistry , sodium , optoelectronics , computer science , programming language , metallurgy
Dielectric properties of one-dimensoional polymer PTS single crystal have been measured along the chain direction in the temperature rang 77-273 K. A second-order phase transition from a high temperature nonpolar state to a low temperature polar state accompanied by an anomaly in the dielectric constant is observed at 195 K. Two peaks in the dielectric loss are found at 150 K and 100 K. The results are explained by a model which invokes three modes of side group motions.