Ordering of agarose near the macroscopic gelation point

2004 ◽  
Vol 69 (4) ◽  
Author(s):  
Donatella Bulone ◽  
Daniela Giacomazza ◽  
Vincenzo Martorana ◽  
Jay Newman ◽  
Pier L. San Biagio
Keyword(s):  
Gelation Point

Propagating Property of Surface Waves and Viscoelasticity near the Gelation Point

1998 ◽  
Vol 37 (Part 1, No. 5B) ◽  
pp. 2815-2817 ◽  
Author(s):  
Hirotaka Okabe ◽  
Keiichi Kuboyama ◽  
Kazuhiro Hara ◽  
Shoich Kai
Keyword(s):  
Surface Waves ◽  
Gelation Point

scholarly journals The gelation point of alkyd resins

1961 ◽  
Vol 5 (16) ◽  
pp. S16-S18 ◽  
Author(s):  
H. S. Lilley
Keyword(s):  
Gelation Point ◽  
Alkyd Resins

Synthesis and Characterization of Polysilane-Organometallic Complexes

2007 ◽  
Vol 19 (5-6) ◽  
pp. 510-519 ◽  
Author(s):  
Liviu Sacarescu ◽  
Rodinel Ardeleanu ◽  
Gabriela Sacarescu ◽  
Mihaela Simionescu
Keyword(s):  
Metal Complex ◽  
Electronic Structures ◽  
Condensation Reaction ◽  
Organometallic Complexes ◽  
System Behavior ◽  
Gelation Point ◽  
New Material ◽  
Polymeric Ligand ◽  
Polymeric Structures

A new polysilane with pendant metal complex segments was synthesized and characterized. For this purpose a macroligand has been prepared starting from a iodopropyl-functionalized polysilane and a bis(salicylideneimine) derivative. Under mild reaction temperature this polymeric ligand was able to form crosslinked structures. The material was then doped with metal cations and was investigated to observe the system behavior near the gelation point. The UV-vis spectrum of the new material indicated that the electronic structures of the conjugate polysilane chain and metal complex remained unaffected by the condensation reaction process. Similar polymeric structures could be useful to build new organic electroconductive devices.

scholarly journals Synthesis and rheology of thermoreversible polyurethane hydrogels

2012 ◽  
Vol 10 (6) ◽  
pp. 1859-1866 ◽  
Author(s):  
Luiza Gradinaru ◽  
Constantin Ciobanu ◽  
Stelian Vlad ◽  
Maria Bercea ◽  
Marcel Popa
Keyword(s):  
Ethylene Oxide ◽  
Sol Gel ◽  
Gelation Point ◽  
Wetting Properties ◽  
Weight Concentration ◽  
Poly Ethylene Oxide ◽  
Ft Ir ◽  
Poly Ethylene ◽  
Poly Propylene ◽  
Self Aggregation

AbstractPolyurethanes based on poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymer, succinic or citric acid, and ethyl ester L-lysine diisocyanate were synthesized and characterized by FT-IR and GPC. Wetting properties were evaluated by contact angle determinations. The critical micelle concentration was determined from surface tension measurements. Their abillity to undergo self-aggregation and temperature induced gelation was investigated through dynamic oscillatory measurements. The gelation point, sol-gel transitions, and gel structure are influenced by polymer structure, composition, molecular weight, concentration, and heating rate.

Comparison of model prediction with experiment for concentration-dependent modulus of poly(vinyl alcohol) (PVA) gels near the gelation point

1992 ◽  
Vol 195 (5-6) ◽  
pp. 509-512 ◽  
Author(s):  
Toshikazu Takigawa ◽  
Masaoki Takahashi ◽  
Kenji Urayama ◽  
Toshiro Masuda
Keyword(s):  
Model Prediction ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Gelation Point

Anomalous velocity change of surface wave near the gelation point

1999 ◽  
Vol 263-264 ◽  
pp. 73-76 ◽  
Author(s):  
Hirotaka Okabe ◽  
Keiichi Kuboyama ◽  
Kazuhiro Hara ◽  
Shoichi Kai
Keyword(s):  
Surface Wave ◽  
Gelation Point ◽  
Velocity Change ◽  
Anomalous Velocity
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