(S)-4-(2-Methylbutyl)-4'-Cyanobiphenyl (5*CB) Glass Former : Are the Crystalline Polymorphs Disordered?
(S)-4-(2-Methylbutyl)-4'-Cyanobiphenyl (5*CB) Glass Former : Are the Crystalline Polymorphs Disordered?
复制标题
(S)-4-(2-甲基丁基)-4-氰基联苯 (5*CB) 玻璃形成体：结晶多晶型是否无序？
DOI：
10.1080/15421406.2011.568349
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发表时间：
2011
影响因子：
0.7
通讯作者：
J.Krawczyk
中科院分区：
文献类型：
--
作者：
A.Inaba;M.Massalska-Arodz;H.Suzuki;J.Krawczyk
综述了S右手-4-(2-甲基丁基)-4‘-氰基二苯基玻璃成型剂的量热法(至0.35K)和光谱方法的研究进展。该物质包括各向同性和胆甾相的液体相、胆甾相的玻璃和两种晶型，其中一种晶型转变为玻璃。讨论了热容低于5℃的两个反常现象及其与分子在三个固相中的有序性的关系。
The studies performed for right-handed (S)-4-(2-methylbutyl)-4′-cyanobiphenyl glass former using calorimetry (down to 0.35 K) and spectroscopy methods are reviewed. The substance reveals isotropic and cholesteric liquid phases, glass of cholesteric phase and two crystalline polymorphs, one of which transforms to glass. Two anomalies in heat capacity below 5 K and their relation to ordering of the molecules in three solid phases are discussed.