Novel double phase transforming organogel based on β-cyclodextrin in 1,2-propylene glycol.
This paper describes a novel double phase transforming organogel (gel-sol-gel') composed of nontoxic β-cyclodextrin, potassium carbonate, and 1,2-propylene glycol. The gel-sol-gel' transforming processes are followed by a reversible gel-sol transforming process and an irreversible sol-gel' transforming process based on heating. The gel-sol-gel' transformation is accompanied by microstructure changes from nanospheres to nanorods. K(2)CO(3) plays a key role in associating supramolecular architectures of β-cyclodextrin into a three-dimensional network. This work may bring further applications in the areas of smart materials, drug delivery systems, and biomaterials.
Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Jinan 250100, P R China.
Wenqi
W
Liu
Pengyao
P
Xing
Feifei
F
Xin
Yuehui
Y
Hou
Tao
T
Sun
Jingcheng
J
Hao
Aiyou
A
Hao
D001672:Biocompatible Materials / Q000737:chemistry; D002254:Carbonates / Q000737:chemistry; D005782:Gels; D008958:Models, Molecular; D008968:Molecular Conformation; D044367:Phase Transition; D011188:Potassium / Q000737:chemistry; D019946:Propylene Glycol / Q000737:chemistry*; D047392:beta-Cyclodextrins / Q000737:chemistry*
D001672:Biocompatible Materials; D002254:Carbonates; D005782:Gels; D047392:beta-Cyclodextrins; D019946:Propylene Glycol; C037593:potassium carbonate; D011188:Potassium