UV Curable Organic-Inorganic Hybrid Materials

2000 ◽  
Vol 628 ◽  
Author(s):  
Guang-Way Jang ◽  
Ren-Jye Wu ◽  
Yuung-Ching Sheen ◽  
Ya-Hui Lin ◽  
Chi-Jung Chang
Keyword(s):  
Hybrid Materials ◽  
Colloidal Silica ◽  
Sol Gel ◽  
Solution Ph ◽  
Uv Curable ◽  
Inorganic Hybrid ◽  
Degradation Temperature ◽  
Sol Gel Process ◽  
The Stability ◽  
Thermal Degradation Temperature

This work successfully prepared an UV curable organic-inorganic hybrid material consisting of organic modified colloidal silica. Applications of UV curable organic-inorganic hybrid materials include abrasion resistant coatings, photo-patternable thin films and waveguides. Colloidal silica containing reactive functional groups were also prepared by reacting organic silane and tetraethyl orthosilicate (TEOS) using sol-gel process. In addition, the efficiency of grafting organic moiety onto silica nanoparticles was investigated by applying TGA and FTIR techniques. Experimental results indicated a strong interdependence between surface modification efficiency and solution pH. Acrylate-SiO2 hybrid formation could result in a shifting of thermal degradation temperature of organic component from about 200°C to near 400°C. In addition, the stability of organic modified colloidal silica in UV curable formula and the physical properties of resulting coatings were discussed. Furthermore, the morphology of organic modified colloidal silica was investigated by performing TEM and SEM studies‥

Synthesis of silsesquioxane urethane hybrid materials by a modified sol–gel process

2015 ◽  
Vol 39 (12) ◽  
pp. 9789-9799 ◽  
Author(s):  
Sizhe Wang ◽  
Guangli Li ◽  
John J. Chiao ◽  
Z. Jeffrey Wang ◽  
Yanwen Yvonne Duan
Keyword(s):  
Functional Groups ◽  
Hybrid Materials ◽  
Sol Gel ◽  
Uv Curable ◽  
Sol Gel Process ◽  
Molecular Hybrids ◽  
The Stability

UV-curable molecular hybrids were prepared by a sol–gel process that could be adopted industrially. The stability was improved and additional functional groups introduced.

Properties of Coating Films Synthesized from Colloidal Silica and Methyltrimethoxysilane

2007 ◽  
Vol 544-545 ◽  
pp. 1037-1040
Author(s):  
Hoy Yul Park ◽  
Moon Kyong Na ◽  
Seog Young Yoon ◽  
Seong Soo Park
Keyword(s):  
Colloidal Silica ◽  
Sol Gel ◽  
Chemical Properties ◽  
Dip Coating ◽  
Coating Films ◽  
Glass Substrates ◽  
Degradation Temperature ◽  
Physical And Chemical ◽  
And Chemical Properties ◽  
Thermal Degradation Temperature

Colloidal silica/methyltrimethoxysilane (MTMS) sol solutions were prepared in variation with the ratio of MTMS to colloidal silica. Sol solutions were prepared by sol-gel reaction. To understand their physical and chemical properties, dip coating of sol solutions was performed on the glass substrates. The state of coating films was investigated in variation with the amount of MTMS and reaction time. The contact angle and thickness of coating films increased with an increasing amount of MTMS. The surface roughness of coating films decreased with an increasing amount of MTMS. Coating films were stable until 550°C. Thermal degradation temperature of coating films decreased with an increasing amount of MTMS.

Structure–property behavior of UV-curable polyepoxy–acrylate hybrid materials prepared via sol–gel process

2003 ◽  
Vol 87 (10) ◽  
pp. 1654-1659 ◽  
Author(s):  
Ling Zhang ◽  
Zhaohua Zeng ◽  
Jianwen Yang ◽  
Yonglie Chen
Keyword(s):  
Hybrid Materials ◽  
Sol Gel ◽  
Structure Property ◽  
Uv Curable ◽  
Sol Gel Process

Study on acrylic resin/titania organic–inorganic hybrid materials prepared by the sol–gel process

Polymer ◽  
2004 ◽  
Vol 45 (9) ◽  
pp. 2967-2976 ◽  
Author(s):  
Mingna Xiong ◽  
Bo You ◽  
Shuxue Zhou ◽  
Limin Wu
Keyword(s):  
Hybrid Materials ◽  
Sol Gel ◽  
Acrylic Resin ◽  
Inorganic Hybrid ◽  
Sol Gel Process

Characterization and properties of UV-curable polyurethane-acrylate/silica hybrid materials prepared by the sol-gel process

2004 ◽  
Vol 53 (10) ◽  
pp. 1431-1435 ◽  
Author(s):  
Ling Zhang ◽  
Zhaohua Zeng ◽  
Jianwen Yang ◽  
Yonglie Chen
Keyword(s):  
Hybrid Materials ◽  
Sol Gel ◽  
Uv Curable ◽  
Polyurethane Acrylate ◽  
Sol Gel Process ◽  
Silica Hybrid

Preparation and characterization of organic-inorganic hybrid materials incorporating diphosphino moieties. Study of the accessibility of the phosphorus atoms included into the material

2000 ◽  
Vol 78 (11) ◽  
pp. 1519-1525 ◽  
Author(s):  
Jean-Philippe Bezombes ◽  
Claude Chuit ◽  
Robert JP Corriu ◽  
Catherine Reyé
Keyword(s):  
Solid State ◽  
Hybrid Materials ◽  
Sol Gel ◽  
Inorganic Hybrid ◽  
Sol Gel Process ◽  
Inorganic Network

The hydrolysis-polycondensation by the sol-gel process of the aromatic diphosphines (X3SiC6H4)2PC6H4P(C6H4SiX3)2, which are rigid molecules bearing four hydrolysable SiX3 groups (X = OiPr, H), leads to new organic-inorganic hybrid materials, characterized by solid state 13C, 29Si, and 31P NMR spectroscopies. The accessibility of the phosphorus centres incorporated into the xerogel obtained from the diphosphine with X = OiPr has been studied. All the phosphorus atoms reacted quantitatively with H2O2, S8, and CH3I but only 20% with the more bulky reagent W(CO)5·THF. This result is explained by the rigidity of the inorganic network resulting from the high number of hydrolysable Si-OiPr groups in the precursor.Key words : Diphosphines, sol-gel process, xerogels, solid 31P NMR.

Hybrid materials for Optical Limiting

2004 ◽  
Vol 847 ◽  
Author(s):  
Marcus Örtenblad ◽  
Stephane Parola ◽  
Frédéric Chaput ◽  
Cédric Desroches ◽  
Catherine Sigala ◽  
...  
Keyword(s):  
Solid State ◽  
Hybrid Materials ◽  
Molecular Species ◽  
Sol Gel ◽  
Wavelength Region ◽  
Optical Limiting ◽  
Sol Gel Process ◽  
The Matrix ◽  
Matrix Class ◽  
The Stability

ABSTRACTMaterials based on alkynyl platinum derivatives and thiacalixarenes were prepared through the sol-gel process The molecular species were grafted to the matrix (class II hybrid) in order to maximise the concentration and the stability of the final solid-state material Broadband optical limiting performance in the visible wavelength region was observed in the prepared materials Thermomechanical characterisation of the matrix is also discussed.

Phase Separation in Sol-Gel Systems of Organic-Inorganic Hybrids

2006 ◽  
Vol 45 ◽  
pp. 759-768
Author(s):  
Kazuki Nakanishi ◽  
Kazuyoshi Kanamori
Keyword(s):  
Phase Separation ◽  
Hybrid Materials ◽  
Sol Gel ◽  
Surface Hydrophobicity ◽  
The Other ◽  
Inorganic Hybrid ◽  
Surface Hydrophilicity ◽  
Other Hand ◽  
Sol Gel Process ◽  
Polymerization Induced Phase Separation

Organic-inorganic hybrid monoliths with well-defined macropores and/or mesopores have been synthesized by a sol-gel process accompanied by polymerization-induced phase separation. Using aklyltrialkoxysilanes and alkylene-bridged alkoxysilanes, two different categories of organo-siloxane networks have been characterized in view of macroporoisity based on phase separation as well as mesoporosity based on supramolecular templating by surfactants. The alkyl-terminated polysiloxane network exhibited substantial surface hydrophobicity together with the mechanical flexibility. On the other hand, the alkylene-bridged network behaved much more similarly to those prepared from tetraalkoxysilanes with regard to surface hydrophilicity, mechanical rigidness and mesopore-forming ability. Supramolecular templating of mesopores embedded in the gel skeletons comprising well-defined macroporous network has proven to give wide variety of hierarchically designed macro-mesoporous organic-inorganic hybrid materials.

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