Which of the following polymers is used to manufacture clothes for fir – InterviewSolution

InterviewSolution

1.	Which of the following polymers is used to manufacture clothes for firefighters ?A. ThiokolB. KevlarC. NomexD. Dynel
Answer» Correct Answer - C Nomex is a flame - resistant polymer and it is used to manufacture clothes for fire fighters. It is prepared by condensation of m-phenylenediamine and isopthalamide monomers. `` Thiokol is obtained by the condensation copolymerisation of ethylene dichloride and sodium tetrasulphide `(Na_(2)S_(4))`. It is used as binder in solid rocket fuel. `` Kevlar is obtained by condensation copolymerisation of terephthalic acid and diaminobenzene. It is used for making bullet proof vests. `*` Dynel is a copolymer of acrylonitrile and vinyl chloride monomers. it is used for making synthetic hair wigs.

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