Method for Synthesizing Semi-crystalline and Semi-aromatic copolyamide with Ultra High Molecular Weight Using Solid-state Polymerization

摘要

The present invention is at least one kind or more of the main chain by using a solid-state polycondensation of aromatic dicarboxylic acid and at least one kind of relates to a method for producing a co-polyamide comprising an aliphatic diamine, in particular as relates to the very high molecular weight semi-crystalline and semi-aromatic copolyester production process of the polyamide can be prepared within a short time, which copolyester amide, a relative of the present invention a viscosity of 2.0 or more semi-crystalline polymer and semi-aromatic co-polyamide production method, (a) an aromatic dicarboxylic acid (aromatic dicarboxylic acid), aliphatic dicarboxylic acid (aromatic dicarboxylic acid) and aliphatic diamines (aliphatic diamine) including to co-polyamide through the step of preparing a pre-polymer and (b) a solid phase polymerization comprising a step of increasing the molecular weight of the polyamide pre-polymer co.