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Which one of the following is a polyamide polymer?
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The correct answer is:
Nylon-6,6
Nylon-6,6 is a polyamide polymer prepared by the condensation of hexamethylene diamine and adipic acid under high
pressure and at high temperature
\( \begin{array}{lc}n \mathrm{NH}_{2}\left(\mathrm{CH}_{2}\right)_{6} \mathrm{NH}_{2} \\ \text { Hexamethylene diamine }\end{array}+n H O O C\left(C H_{2}\right){ }_{4} \mathrm{COOH} \)
mine
\( \stackrel{\text { Polymerization }}{\longrightarrow} \)
Nylon-6,6
pressure and at high temperature
\( \begin{array}{lc}n \mathrm{NH}_{2}\left(\mathrm{CH}_{2}\right)_{6} \mathrm{NH}_{2} \\ \text { Hexamethylene diamine }\end{array}+n H O O C\left(C H_{2}\right){ }_{4} \mathrm{COOH} \)
mine
\( \stackrel{\text { Polymerization }}{\longrightarrow} \)
Nylon-6,6
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