Triblock Copolymer Based Thermoreversible Gels. 4. Effect of the Midblock and Characterization of the Sol−Gel Transition

1997 ◽  
Vol 30 (16) ◽  
pp. 4619-4625 ◽  
Author(s):  
J. M. Yu ◽  
S. Blacher ◽  
F. Brouers ◽  
L'Homme ◽  
R. Jérôme
Keyword(s):  
Triblock Copolymer ◽  
Sol Gel ◽  
Thermoreversible Gels ◽  
Sol Gel Transition ◽  
Gel Transition

Triblock Copolymer Based Thermoreversible Gels. 2. Analysis of the Sol−Gel Transition

1996 ◽  
Vol 29 (16) ◽  
pp. 5384-5391 ◽  
Author(s):  
J. M. Yu ◽  
Ph. Dubois ◽  
Ph. Teyssié ◽  
R. Jérôme ◽  
S. Blacher ◽  
...  
Keyword(s):  
Triblock Copolymer ◽  
Sol Gel ◽  
Thermoreversible Gels ◽  
Sol Gel Transition ◽  
Gel Transition

Rheological characterization of BaTiO3 sol-gel transition

1997 ◽  
Vol 9 (1) ◽  
pp. 5-15 ◽  
Author(s):  
A. Brasseur ◽  
B. Michaux ◽  
R. Pirard ◽  
O. Van Cantfort ◽  
J. P. Pirard ◽  
...  
Keyword(s):  
Sol Gel ◽  
Rheological Characterization ◽  
Sol Gel Transition ◽  
Gel Transition

Dielectric behavior during sol-gel transition of PEO-PPO-PEO triblock copolymer aqueous solution

2000 ◽  
Vol 43 (6) ◽  
pp. 497-504 ◽  
Author(s):  
M. J. Song ◽  
D. S. Lee ◽  
J. H. Ahn ◽  
D. J. Kim ◽  
S. C. Kim
Keyword(s):  
Aqueous Solution ◽  
Triblock Copolymer ◽  
Sol Gel ◽  
Dielectric Behavior ◽  
Sol Gel Transition ◽  
Gel Transition

Characterization of the Sol-Gel Transition of Alumina Sols Prepared from Aluminum Alcoxides via 27Al NMR

1986 ◽  
Vol 73 ◽  
Author(s):  
William L. Olson ◽  
Lorenz J. Bauer
Keyword(s):  
Nmr Spectra ◽  
Sol Gel ◽  
27Al Nmr ◽  
Sol Gel Transition ◽  
Hydrolysis Of ◽  
Gel Transition

ABSTRACT27Al NMRsp ectra were obtained on a series of alumina sols prepared by the hydrolysis of aluminum sec-butoxide. Subtle but distinct differences were observed in the solution 27Al NMR spectra of sols which varied in appearance from being very milky to completely transparent. No changes were observed in the 27Al spectra of sols which had been aged. The adddition of sufficient quantities of acid or base to gel the sol precipitated dramatic changes in the Al spectra. Aluminum-27 NMR was found to be a highly useful tool for probing the sol-gel transformation of this system.

Characterization of Magnetic Cellulose Microspheres Reconstituted from Ionic Liquid

2013 ◽  
Vol 634-638 ◽  
pp. 913-917
Author(s):  
Shuai Peng ◽  
Juan Fan ◽  
Jie Chang
Keyword(s):  
Sol Gel ◽  
Vibrating Sample Magnetometer ◽  
Cellulose Dissolution ◽  
X Ray Diffraction ◽  
X Ray ◽  
Mean Diameter ◽  
Sol Gel Transition ◽  
Gel Transition ◽  
Structure Properties

Magnetic Fe3O4/cellulose microspheres with mean diameter of 100 μm were prepared by sol-gel transition method using ionic liquids (AmimCl) as solvent for cellulose dissolution and regeneration. Their structure , properties and morphology were analysed using scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and vibrating-sample magnetometer. The results indicated that the synthesized microspheres were good sphere with a mean diameter of about 100 μm. It also showed that cellulose had been successfully covered onto the surface of Fe3O4 after the preparation. Therefore, we have provided a simple and biocompatible support for applications in the biomaterials field.

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