Polymer Technology Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals. Organic peroxides Sulphuric acid Hydroflouric acid None of these Organic peroxides Sulphuric acid Hydroflouric acid None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation is not involved in the manufacture of Nylon Polythene Teflon Terylene Nylon Polythene Teflon Terylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m². Which of the following polymers has the maximum film elongation (of the order of 100%) ? Polythene Teflon Water impermeable cellophane Cellulose acetate Polythene Teflon Water impermeable cellophane Cellulose acetate ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ is a homopolymer. Nylon-66 Bakelite Terylene Neoprene Nylon-66 Bakelite Terylene Neoprene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved in the manufacture of Polyamides Urea-formaldehyde resins Siloxane elastomers Vinyl polymers Polyamides Urea-formaldehyde resins Siloxane elastomers Vinyl polymers ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyesters are manufactured by the polycondensation reaction of Inorganic acid with ethylene glycol Carboxylic acid with ethylene A single monomer Dibasic acid with dihydric alcohol Inorganic acid with ethylene glycol Carboxylic acid with ethylene A single monomer Dibasic acid with dihydric alcohol ANSWER DOWNLOAD EXAMIANS APP
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