Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Palanichamy Sivasamy"'
Publikováno v:
Polymers for Advanced Technologies. 23:829-834
Optically clear poly(methyl methacrylate) (PMMA) blends with HET-EG oligoester (synthesized by condensation of chlorendic acid with ethylene glycol) at six different compositions were prepared by bulk polymerization. The effect of HET-EG in the PMMA
Autor:
D. Ponraju, Thangamani Rajkumar, Chinnaswamy Thangavel Vijayakumar, Vijayakumar Sarannya, Palanichamy Sivasamy, Nagarajan David Mathan
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 102:1071-1077
Bicyclic compounds containing phosphorus on their skeleton such as 2,4,6-trioxa-1-phosphabicyclo[2,2,2]octane-4-methanol phosphate (PEPA) having three active ingredients required for intumescence have been synthesized. The structural characterization
Publikováno v:
Polymer-Plastics Technology and Engineering. 49:316-324
3,9-Dichloro-2,4,8,10-tetraoxo-3,9-disphosphaspiro-[5.5]-undecane-3,9-dioxide (spiro) was melt condensed with structurally different dihydric phenols to form poly aromatic spirophosphates. The thermal volatilization analysis showed eruptive release o
Autor:
Bojja Sreedhar, Thangamani Rajkumar, Chinnaswamy Thangavel Vijayakumar, Palanichamy Sivasamy, Charles A. Wilkie
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 100:651-660
Imparting thermal stability to polymethyl methacrylate (PMMA) without affecting its optical clarity is attempted by incorporating HET acid based oligoesters. Pure PMMA and PMMA containing five and 20 wt% of four different oligoesters are separately p
Autor:
Thangamani Rajkumar, Chinnaswamy Thangavel Vijayakumar, Charles A. Wilkie, Palanichamy Sivasamy
Publikováno v:
European Polymer Journal. 44:1865-1873
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). In the present investigation four
Publikováno v:
European Polymer Journal. 43:3028-3035
Polyesterification of adipic acid and maleic anhydride with 1,3-bis(2-hydroxyethoxy)benzene (HER) in the presence of toluene-4-sulphonic acid was carried out using melt condensation technique. The structural characterization of the synthesized polyes
Autor:
S. Vinayagamoorthi, Johannes Karl Fink, Palanichamy Sivasamy, Chinnaswamy Thangavel Vijayakumar
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 76:191-197
Triassic Lunzer and Upper Cretaceous Gosau coals from the eastern part of the Northern calcareous Alps and Jurassic Gresten coals from the eastern ultrahelveticum in Austria were characterized through thermogravimetry (TG) curves obtained by slow hea
Publikováno v:
Macromolecular Symposia. 181:253-260
Based on the anhydrides like hexolic (5,6,7,8,10,10-hexachloro-3a,4,4a,5,8,8a,9,9a-octahydro-5,8-methanonaphtho-[2,3-c]-furan-1,3-dione), maleic and phthalic and diols like 1,4-butanediol, cis-2-butene-1,4-diol and 2,3-dichloro-2-butene-1,4-diol, a f
Publikováno v:
Macromolecular Symposia. 181:245-252
Spiro phosphorus compounds play a vital role, in recent years, in imparting flame retardancy and intumescence to the polymers. To ascertain the mechanism of the intumescency, model spiro phosphorus compounds, i.e., 3,9-disubstituted-2,4,8,10-tetraoxa
Publikováno v:
Thermochimica Acta. 208:283-291
The thermal behaviour of the radically polymerised poly(N-phenylmaleimide) was studied, adopting the thermogravimetric method at heating rates of 1, 5, 10 and 50°C min−1 in a nitrogen atmosphere. The kinetic parameters, such as activation energy,