scholarly journals Synthesis of Bioactive Organic-Inorganic Hybrids from Tetraisopropyl Titanate and Hydroxyethylmethacrylate

2006 ◽  
Vol 114 (1325) ◽  
pp. 87-91 ◽  
Author(s):  
Toshiki MIYAZAKI ◽  
Hiroko AKITA ◽  
Eiichi ISHIDA ◽  
Masahiro ASHIZUKA ◽  
Chikara OHTSUKI
Keyword(s):  
Tetraisopropyl Titanate

Treated knitted fabric for hip protective pads for elderly women. Part II. Performance relevant to thermal comfort

2019 ◽  
Vol 89 (23-24) ◽  
pp. 5006-5013 ◽  
Author(s):  
Wiah Wardiningsih ◽  
Olga Troynikov
Keyword(s):  
Thermal Comfort ◽  
Hip Fractures ◽  
Isopropyl Alcohol ◽  
Elderly Women ◽  
Treatment Method ◽  
Closed Cell ◽  
Spacer Fabric ◽  
Spacer Fabrics ◽  
Tetraisopropyl Titanate ◽  
Cell Foam

This paper describes Part II of a study of hip protective pads made from spacer fabric treated with shear thickening fluid (STF). Hip fractures are a substantial contributor to morbidity and mortality in the elderly, and incidence is rising worldwide. Hip protective pads reduce fractures, but wearing adherence is poor. Pads made from breathable and comfortable fabrics can increase adherence and prevent more hip fractures. In this research, warp-knitted spacer fabrics were treated with STF using one of two methods. Treatment I involved STF and room temperature vulcanizing (RTV) silicone, while treatment II consisted of STF and a mixture of isopropyl alcohol and tetraisopropyl titanate. In Part I, STF-treated knitted spacer fabric was shown to have significantly greater force attenuation capacity than untreated fabric and comparable to force attenuation capacity of closed cell foam. In Part II, the effects on performance relevant to the thermal comfort of the wearer of each treatment method, the amount of STF used, and layering were assessed using a sweating guarded hot plate, and comparisons made between treated fabrics and with closed cell foam. Treatments I and II produced pads with significantly different permeability index and mass compared to closed cell foam. Treatment II produced pads with high force attenuation capacity, suitable permeability indexes, and low mass – preferred characteristics in hip protective pads. The study concluded that knitted spacer fabrics treated with STF, isopropyl alcohol, and tetraisopropyl titanate are potentially useful materials for hip protective pads.

Effect of the preparation condition on the properties of titania-silica derived from tetraisopropyl titanate(IV) and tetraethyl orthosilicate

1996 ◽  
Vol 39 (1-2) ◽  
pp. 79-82 ◽  
Author(s):  
Seiichiro Imamura ◽  
Tohru Nakai ◽  
Hiroyoshi Kanai ◽  
Takeshi Shiono ◽  
Kazunori Utani
Keyword(s):  
Preparation Condition ◽  
Tetraethyl Orthosilicate ◽  
Tetraisopropyl Titanate

scholarly journals Effect of different parameters on sonochemical synthesized nanocrystalline TiO2 particles

2012 ◽  
Vol 18 (2) ◽  
pp. 171-178 ◽  
Author(s):  
Reza Abedini ◽  
Mahmoud Mousavi
Keyword(s):  
Particle Size ◽  
Water Content ◽  
Ultrasonic Irradiation ◽  
Sonication Time ◽  
Nanocrystalline Tio2 ◽  
Tio2 Particles ◽  
Particle Size Analyzer ◽  
Ultrasonic Assisted ◽  
Hydrolysis Of ◽  
Tetraisopropyl Titanate

An ultrasonic-assisted method to directly prepare nanocrystalline TiO2 has been used. TiO2 was synthesized by the hydrolysis of Tetraisopropyl titanate (TIPT) in the presence of de-ionized water and ethanol under high-intensity ultrasonic irradiation (24 KHz, 300 W/cm2) at different conditions. The effect of water content, water-to-TIPT ratio, water-to-ethanol ratio and sonication time on the particle size of TiO2 has been investigated by using design of experiment (DOE). The water content, water-to-TIPT ratio, water-to-ethanol ratio and sonication time were varied in the range 100-150 ml, 50-75 v/v, 20-30 v/v and 3-4 hr, respectively. Particle size of TiO2 was characterized using particle size analyzer. The results of DOE show that water content has the greatest effect on the particle size of TiO2.

scholarly journals Structure and Physical Properties of Poly(butylene succinate). Cellulose Acetate Blends containing Tetraisopropyl Titanate.

2001 ◽  
Vol 57 (6) ◽  
pp. 165-171 ◽  
Author(s):  
Takahiro Uesaka ◽  
Nobuo Ogata ◽  
Koji Nakane ◽  
Takashi Ogihara
Keyword(s):  
Physical Properties ◽  
Cellulose Acetate ◽  
Butylene Succinate ◽  
Tetraisopropyl Titanate

Synthesis and Characterization of S-Tenatoprazole

2014 ◽  
Vol 881-883 ◽  
pp. 384-389
Author(s):  
Feng Yan ◽  
Ying Li ◽  
Ze Hui Li
Keyword(s):  
Reaction Time ◽  
Nucleophilic Substitution ◽  
Reaction Temperature ◽  
Cumene Hydroperoxide ◽  
Synthesis And Characterization ◽  
Pyridine Hydrochloride ◽  
Alkaline Conditions ◽  
Tetraisopropyl Titanate

Make 5-methoxy-2-mercapto-imidazo[4,5-b]pyridine and 2-chloro-3,5-dimethyl-4-methoxy-pyridine hydrochloride as the starting materials, in alkaline conditions, use nucleophilic substitution to generate the prochiral sulfide: 2-[2-(4-methoxy-3 ,5-dimethyl-pyridine) methylmercapto]-5-methoxy-imidazo [4,5-b] pyridine. After recrystallization twice, gain the product with the yield of 80%, and the purity of 99.6% and above. Then make D-(-)-diethyl tartrate and tetraisopropyl titanate as the chiral reagents, in alkaline conditions, use cumene hydroperoxide oxide to oxidize prochiral sulfide, for synthesis of (S)-Tenatoprazole, and the results showed that when, the reaction temperature was , and reaction time was 20h, the result was the best.

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