Thermal behaviour of two room-temperature ionic liquids containing the methylimidazolium cation

被引：6

作者：

Diogo, HP

Ramos, JJM

机构：

[1] Ctr Quim Fis Mol, IST, P-1049001 Lisbon, Portugal

[2] Ctr Quim Estrutural, IST, P-1049001 Lisbon, Portugal

来源：

PHASE TRANSITIONS | 2005年 / 78卷 / 04期

关键词：

ionic liquid; molten salts; RTIL; MTDSC; cold crystallisation; glass transition;

D O I：

10.1080/01411590412331317112

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We have investigated the glass transition relaxation of two room-temperature ionic liquids using Modulated Temperature Differential Scanning Calorimetry (MTDSC). Furthermore, conventional DSC was used to clarify their crystallisation behaviour. One of the liquids avoids crystallisation, while the other shows cold crystallisation. A step-by-step temperature scanning experimental procedure was used to analyse in detail the thermal behaviour of the latter in the crystallisation and melting temperature regions. The existence of polymorphism is discussed.

引用

页码：357 / 368

页数：12

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