Soft Matter p. 5807 - 5814 (2013)
Update date:2022-08-03
Topics:
Cai, Xiuqin
Wu, Ying
Wang, Liya
Yan, Ni
Liu, Jing
Fang, Xiaohua
Fang, Yu
Two novel cholesteryl derivatives of calix[4]arene with l- or d-phenylalanine residues in the linkers (1 and 2, respectively) were designed and synthesized. The gelation behaviors of the compounds in 30 organic solvents were tested. It was demonstrated that 1 gels n-butanol and n-pentanol at room temperature, but 2 gels isopropanol only under the treatment of heating-cooling cycling or energy supplementing via sonication, vortex or agitation at room temperature. AFM and SEM measurements revealed that the structures of the gel networks are greatly affected by the spatial configurations of the linkers contained in the calix[4]arene derivatives. Furthermore, mechanical treatment not only promotes the gelation of the system of 2-isopropanol, but also enhances the strength of the gel. Specifically, 18 min of agitation at room temperature makes the storage modulus and the yield stress of the gel (3.5%, w/v) exceed 1 × 106 Pa and 6 × 103 Pa, respectively, which are second only to the mechanically strongest low molecular mass gelator-based molecular gel reported until now. XRD analysis revealed the hexagonal packing structure of 1 in its n-pentanol gel.
View MoreHunan Zhongqi Pharmaceutical Co., Ltd
website:http://www.hnzqzy.com
Contact:0730-8722288 13807308622
Address:Wanjiafan Road ,Yueyang Economic And Technological Development Zone ,Hunan,PRC
Contact:+86-18653358619
Address:zibo
Lonzeal Pharmaceuticals Co., Ltd.
website:http://www.lonzeal.com
Contact:+86-13381011962
Address:RM 801, Yue MOMA, No. 26 Anningzhuang Rd. Haidian District, Beijing, China
JiYi Chemical (Beijing) Co., Ltd.
Contact:+86-10-89385733
Address:Shilou Town of Fangshan District, Beijing
SHANGHAI RC CHEMICALS CO.,LTD.
website:http://www.rcc.net.cn
Contact:+86-21-50322175
Address:Rm1415 Yinqiao Masion No.58 Jinxin Road Pudong Shanghai China
Doi:10.1016/j.bmcl.2018.12.021
(2019)Doi:10.1016/S0040-4039(00)61163-2
(1992)Doi:10.1021/jm00343a015
(1982)Doi:10.1021/ja00978a036
(1967)Doi:10.1007/s11172-012-0307-z
()Doi:10.1016/j.tetlet.2013.07.064
(2013)