nature : with two different functional groups of the monomer together for the condensation forming polyamide. If HOOCRCOOH with dicarboxylic acid (or its derivatives such as chloride) with diamines H2N RNH2 for polycondensation, be polyamide. Most of the nylon 66 and nylon 1010.
Notice:Each item can have many explanations from different angels. If you want grasp the item comprehensively,please see below "more details data".