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 MoreWeifang Dongxing Chitosan Factory
website:http://dxchitosan.lookchem.com/
Contact:13475651157
Address:Weifang city ,shandong province
Shanghai Mio Chemical Co., Ltd
Contact:0086 21- 64401188-622
Address:16 Floor NO.2 Jiefang Building, No. 4855 Dushi Road, 201100 Shanghai, P.R.China
Contact:+86-571-28186845
Address:Room 1224,Eastcom Mansion,398 Wensan Road,Hangzhou,310013 China
Anqing World Chemical Co., Ltd.
Contact:+86-556-5800026
Address:Daguan Economic Development Zone of circular economy industrial park Anqing City Anhui province
Contact:+86-310-7092106
Address:Quzhou Modern & New Industrial Park, Handan, Hebei 057250, 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)