{HEAD ~ A process} for preparing {TAIL ~ a Polyamide polymer} based on a dicarboxylic acid and a diamine by polycondensation in an extruder, which comprises 
for preparing
{ HEAD ~ A process } for preparing { TAIL ~ a Polyamide polymer } based on a dicarboxylic acid and a diamine by polycondensation in an extruder , which comprises
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