Crystal Growth and Design p. 5388 - 5396 (2015)
Update date:2022-08-05
Topics:
Stappert, Kathrin
Lipinski, Gregor
Kopiec, Gabriel
Spielberg, Eike T.
Mudring, Anja-Verena
The synthesis and properties of a set of novel ionic liquid crystals with congruently shaped cations and anions are reported to check whether pairing mesogenic cations with mesogenic anions leads to a stabilization of a liquid crystalline phase. To that avail 1-alkyl-3-methyl-triazolium cations with an alkyl chain length of 10, 12, and 14 carbon atoms have been combined with p-alkyloxy-benzenesulfonate anions with different alkyl chain lengths (n = 10, 12, and 14). The corresponding triazolium iodides have been synthesized as reference compounds where the cation and anion have strong size and shape mismatch. The mesomorphic behavior of all compounds is studied by differential scanning calorimetry and polarizing optical microscopy. All compounds except 1-methyl-3-decyltriazolium iodide, which qualifies as an ionic liquid, are thermotropic ionic liquid crystals. All other compounds adopt smectic A phases. A comparison of the thermal phase behavior of the 1-methyl-3-decyltriazolium bromides to the corresponding p-alkoxy-benzensulfonates reveals that definitely the mesophase is stabilized by pairing the rod-shaped 1-alkyl-3-methyltriazolium cation with a rod-like anion of similar size.
View Morewebsite:http://www.apeptides.com/en/
Contact:+86-21-60871011
Address:No. 80 Chuanshan Shuyuan Steet,Pudong,Shanghai
Hangzhou Think Chemical Co. Ltd
website:http://www.thinkchem.com/
Contact:86-571-89986307/81956191/81956084/81956192
Address:Room 501-502, Tower E, Yuanjian Building, Yuanyang International Center, Hangzhou-310011, China
Contact:+86-571-28186845
Address:Room 1224,Eastcom Mansion,398 Wensan Road,Hangzhou,310013 China
Wuhan Soleado Technology Co.,Ltd.
Contact:86-2783341481 18971291927
Address:RM2405 Unit 1 Builing 1, Taiyin Tower, Changqing Road,Wuhan China
Shandong Dayi Chemical Co., Ltd.
website:http://www.dayi.com.cn
Contact:+86- 535-7388728. 15306386031
Address:No 1 Danya west road, Laiyang City, Shandong province
Doi:10.1021/om9801709
(1998)Doi:10.1080/00397919808007033
(1998)Doi:10.1039/a804036b
(1998)Doi:10.1016/0960-894X(96)00037-6
(1996)Doi:10.1016/S0040-4020(98)00823-0
(1998)Doi:10.1016/S0040-4039(98)01796-1
(1998)