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Solubility characteristics of bisphenol A polycarbonate, acrylonitrile-butadiene-styrene and their blends are studied in different solvents. A computer program known as ‘spherical volume of solubility’ is used to determine total and partial solubility parameters of the polymers and their blends. The solubility parameters calculated from group contribution techniques are compared with the computed...
Polypropylene's high processing temperatures initiate thermal oxidative degradation and loss of physical properties. Stabilisation efficiency of 2,6-di-tert-butyl-4-methyl phenol (BHT) and 4,4 -di-{2-[(3,5-di-tert-butyl-4-hydroxy phenyl) methylene] hydrazine carbothioamido} biphenyl ether has been investigated in unstabilised isotactic polypropylene. Test techniques used to evaluate the stabilisation...
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