1.

Write the structures of the monomers of the following polymers: (i) Natural rubber (ii) Synthetic rubber(Buna-S) (iii) Nylon-6,6 (iv) Polythene (v) PVC (vi) Teflon (viii) Bakelite (ix) Polyropylene (x) Neoprene (x) Neoprene (xi) Plexiglass (xii) Buna-N

Answer»

Solution :
(iii) Hexamethylene diamine `[H_(2)N(CH_(2))_(6)NH_(2)]` and adipic ACID `[HOOC(CH_(2))_(4)COOH]`
(iv) Ethylene `(H_(2)C=CH_(2))`
(v) VINYL chloride `(H_(2)C=CHCl)`
(vi) Tetrafluoro ethylene `(F_(2)C=CF_(2))`
(vii) Ethylene glycol `(HOCH_(2)-CH_(2)OH)` and phthalic acid
(viii) PHENOL and formaldehyde
(ix) Propylene `(CH_(3)CH=CH_(2))`
(x) Chloroprene `(H_(2)C=overset(CL)overset(|)(C )-CH=CH_(2))`
(xi) Methyl methylacrylate `(H_(2)C=overset(CH_(3))overset("|")("C")-COOCH_(3))`
(xii) 1,3-Butadine and acrylonitrile `(H_(2)C=CH-CN)`


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