Polymer Technology Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800? 49200 50800 51600 50000 49200 50800 51600 50000 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styrene-acrylonitfile copolymer with butadiene based elastomer, is a/an Rigid foam Engineering plastic Spongy rubber Thermosetting polymer Rigid foam Engineering plastic Spongy rubber Thermosetting polymer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Most commonly used rubber vulcanisation agent is Alumina Bromine Sulphur Platinum Alumina Bromine Sulphur Platinum ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Vulcanisation of rubber does not increase its Softness Elasticity & water solubility Oxidation resistance Weight & strength Softness Elasticity & water solubility Oxidation resistance Weight & strength ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is Polypropylene PVC Terylene Polybutadiene Polypropylene PVC Terylene Polybutadiene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Molecular weights of plastics ranges from 5000 to 1000 20000 to 25000 1000 to 5000 10⁹ to l0¹¹ 5000 to 1000 20000 to 25000 1000 to 5000 10⁹ to l0¹¹ ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS