Polymer Technology Commercial production of polypropylene employs __________ polymerisation. Emulsion Solution Bulk Suspension Emulsion Solution Bulk Suspension ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher Hardness, rigidity & brittleness Melting point Tensile strength Densities Hardness, rigidity & brittleness Melting point Tensile strength Densities ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine. Alkyd Amino Epoxy Phenolic Alkyd Amino Epoxy Phenolic ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosplastic materials Do not soften on application of heat None of these Are heavily branched molecules Are solvent insoluble Do not soften on application of heat None of these Are heavily branched molecules Are solvent insoluble ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Nylon-66 is manufactured from Dimethyl terephthalate (DMT) and ethylene glycol Adipic acid and hexamenthylene diamine Caprolactum Maleic anhydride and hexamethylene diamine Dimethyl terephthalate (DMT) and ethylene glycol Adipic acid and hexamenthylene diamine Caprolactum Maleic anhydride and hexamethylene diamine ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosetting resins/polymers as compared to thermoplastic ones are Soluble in all organic solvents Formed by addition polymerisation only Easily reshaped & reused More brittle Soluble in all organic solvents Formed by addition polymerisation only Easily reshaped & reused More brittle ANSWER DOWNLOAD EXAMIANS APP
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