Polymer Technology Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styrene-acrylonitfile copolymer with butadiene based elastomer, is a/an Spongy rubber Rigid foam Engineering plastic Thermosetting polymer Spongy rubber Rigid foam Engineering plastic Thermosetting polymer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer? Polythene Bakelite (phenol formaldehyde) Nylon-6 Polyester Polythene Bakelite (phenol formaldehyde) Nylon-6 Polyester 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%) ? Teflon Water impermeable cellophane Cellulose acetate Polythene Teflon Water impermeable cellophane Cellulose acetate Polythene 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 Vinyl polymers Siloxane elastomers Polyamides Urea-formaldehyde resins Vinyl polymers Siloxane elastomers ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Nylon 6 as compared to nylon 6, 6 has lower Abrasion resistance Adhesion to rubber Hardness Thermal stability Abrasion resistance Adhesion to rubber Hardness Thermal stability ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycaprolactum (Nylon - 6) is produced by the condensation polymerisation of caprolactum at 240-280°C in which the conversion of caprolactum is about __________ percent. 90 99 50 75 90 99 50 75 ANSWER DOWNLOAD EXAMIANS APP
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