Polymer Technology In condensation polymerisation as compared to addition polymerisation The monomers contain two functional groups The monomers are unsaturated compounds No co-product is lost Generally only one monomer is involved The monomers contain two functional groups The monomers are unsaturated compounds No co-product is lost Generally only one monomer is involved 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 Terylene PVC Polypropylene Polybutadiene Terylene PVC Polypropylene Polybutadiene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Epoxy resins (i.e., epoxide polymers) Contain an epoxy group ( ##### ) at the ends of the polymer Use emulsion polymerisation methods Are made by addition polymerisation reaction only Are cross-linked polymers only Contain an epoxy group ( ##### ) at the ends of the polymer Use emulsion polymerisation methods Are made by addition polymerisation reaction only Are cross-linked polymers only ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In nylon-6, the number 6 represents the total number of Carbon atoms in the linear polymer chain Nitrogen atoms in the ring Carbon atoms in the ring Hydrogen atoms in the ring Carbon atoms in the linear polymer chain Nitrogen atoms in the ring Carbon atoms in the ring Hydrogen atoms in the ring ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are 0°C and 3 kgf/cm² - 20°C and 1 kgf/cm² 0°C and 1 kgf/cm² 5°C and 1 kgf/cm² 0°C and 3 kgf/cm² - 20°C and 1 kgf/cm² 0°C and 1 kgf/cm² 5°C and 1 kgf/cm² ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is generally not drawn into fibre? Saturated polyesters Polyamide Unsaturated polyesters Polyacrylonitrile Saturated polyesters Polyamide Unsaturated polyesters Polyacrylonitrile ANSWER DOWNLOAD EXAMIANS APP
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