Polymer Technology Vulcanisation of rubber does not increase its Softness Oxidation resistance Elasticity & water solubility Weight & strength Softness Oxidation resistance Elasticity & water solubility Weight & strength ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Rayon is superior to cotton in making gauge for wound treatment, because rayon Can absorb over 90% of its own weight of water Both B & C Does not stick to the wound unlike cotton Is a synthetic polymer Can absorb over 90% of its own weight of water Both B & C Does not stick to the wound unlike cotton Is a synthetic polymer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plasticisers are added to synthetic plastics to Improve workability during fabrication Develop new improved properties not present in the original resin Impart flexibility All of these Improve workability during fabrication Develop new improved properties not present in the original resin Impart flexibility All of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Branched chain polymers compared to linear polymers have higher Tensile strength Melting point Density Degree of irregularity in atomic packing Tensile strength Melting point Density Degree of irregularity in atomic packing ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Epoxy resins (i.e., epoxide polymers) Are cross-linked polymers only Are made by addition polymerisation reaction only Use emulsion polymerisation methods Contain an epoxy group ( ##### ) at the ends of the polymer Are cross-linked polymers only Are made by addition polymerisation reaction only Use emulsion polymerisation methods Contain an epoxy group ( ##### ) at the ends of the 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? Bakelite (phenol formaldehyde) Polyester Nylon-6 Polythene Bakelite (phenol formaldehyde) Polyester Nylon-6 Polythene ANSWER DOWNLOAD EXAMIANS APP
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