Results 61 to 70 of about 5,136,187 (237)
Zaštita Materijala, 2018 The technology used in creating coatings is very important for the environmental science field. Regarless to the available types of raw materials, new methods of combining materials or the evolution of traditional technologies, coatings provide a range ...
Mirjana Jovičić +6 more
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Studies of Vanadyl Complexes of Phthalic Acid and Substituted Phthalic Acids
, 1977 Department of Chemistry, S. B. E. S. College of Science, Aurangabild-481 001 Manuscript received 23 August 1976 ; revised 1 June 1977 ; accepted 3 October 1977 The interactions of vanadyl ion with phthalic acid and 3-chloro, 3-bromo, 3-iodo, 3-nitro, 4-nitro and 3 : 6-dichlorophthalic acids have been investigated by Bjerrum-Calvin pH-titration ...
openaire +1 more source
Study of improved resins for advanced supersonic technology composites. Part 1: Heteroaromatic polymers containing ether groups. Part 2: Curing chemistry of aromatic polymers and composite studies [PDF]
Fourteen ether-containing, aromatic dianhydrides have been synthesized from N-phenyl-3 or 4-nitrophthalimide and various bisphenols. The process involves nucleophilic displacement of activated nitro groups with bisphenolate ions.
Hillig, W. B. +2 more
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Polyimide molding powder, coating, adhesive, and matrix resin [PDF]
, 1992 The invention is a polyimide prepared from 3,4'-oxydianiline (3,4'-ODA) and 4,4'-oxydiphthalic anhydride (ODPA), in 2-methoxyethyl ether (diglyme). The polymer was prepared in ultra high molecular weight and in a controlled molecular weight form which ...
Progar, Donald J., St.clair, Terry L.
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Synthesis and Anticancer Activity of Some New S-Glycosyl and S-Alkyl 1,2,4-Triazinone Derivatives
Molecules, 2011 A series of S-glycosyl and S-alkyl derivatives of 4-amino-3-mercapto-6-(2-(2-thienyl)vinyl)-1,2,4-triazin-5(4H)-one (1) were synthesized using different halo compounds such as preacetylated sugar bromide, 4-bromobutylacetate, 2-acetoxyethoxy-methyl ...
Hosam A. Saad, Ahmed H. Moustafa
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Ring-opening copolymerization (ROCOP): synthesis and properties of polyesters and polycarbonates [PDF]
, 2015 Controlled routes to prepare polyesters and polycarbonates are of interest due to the widespread application of these materials and the opportunities provided to prepare new copolymers. Furthermore, ring-opening copolymerization may enable new poly(ester–
Brooks, R +5 more
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Nano Biomedicine and Engineering, 2018 In the current investigation, two series of 2-amino thiazole derivatives were prepared. The first series involved synthesis of (Z)-3-(thiazol-2-ylimino)indolin-2-one (A1) as Schiff base derivatives of 2-amino thiazole and isatin, then synthesis of ...
Faez Abdul-hussein Alrammahi
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Polyimides with improved compression moldability [PDF]
, 1993 The semicrystalline polyimide prepared by reaction of 3,3',4,4' benzophenonetetracarboxylic (BTDA) and 1,3-bis(4-aminophenoxy 4' benzoyl) benzene (1,3-BABB) is modified so that it can be more readily processed to form adhesive bonds, moldings, and ...
Beltz, Mark W. +2 more
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HET acid based oligoesters – TGA/FTIR studies [PDF]
, 2008 One of the important reactive halogenated dicarboxylic acids used in the synthesis of flame retardant unsaturated polyester resins is 1,4,5,6,7,7-hexachlorobicyclo [2.2.1] hept-5-ene-2,3-dicarboxylic acid (HET acid).
Rajkumar, Thangamani +3 more
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Oxalic acid as a heterogeneous ice nucleus in the upper troposphere and its indirect aerosol effect [PDF]
Atmospheric Chemistry and Physics, 2006 Heterogeneous ice freezing points of aqueous solutions containing various immersed solid dicarboxylic acids (oxalic, adipic, succinic, phthalic and fumaric) have been measured with a differential scanning calorimeter.
B. Zobrist +13 more
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