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 50000 51600 50800 49200 50000 51600 50800 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Main constituent of cotton fibre is Lignin Cellulose Gelatine Starch Lignin Cellulose Gelatine Starch ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology A copolymer of vinyl and vinylidine chloride is called Orlon Treylene Dacron Saran Orlon Treylene Dacron Saran ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermocole is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten Polystyrene Polyurathane Either B or C Saturated polyester Polystyrene Polyurathane Either B or C Saturated polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber? Alkylated diphenyl amine Carbon Thiokol Magnesium Alkylated diphenyl amine Carbon Thiokol Magnesium ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl chloride (PVC) Can be made thermosetting by adding a plasticiser Softening temperature is 200°C Is produced by polycondensation reaction Uses either emulsion or suspension polymerisation methods Can be made thermosetting by adding a plasticiser Softening temperature is 200°C Is produced by polycondensation reaction Uses either emulsion or suspension polymerisation methods ANSWER DOWNLOAD EXAMIANS APP
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