Long-Aliphatic-Segment Polyamides: Salt Preparation and Subsequent Anhydrous Polymerization

被引：22

作者：

Boussia, Anastasia C. ^{[1
]}

Vouyiouka, Stamatina N. ^{[1
]}

Porfiris, Athanasios D. ^{[1
]}

Papaspyrides, Constantine D. ^{[1
]}

机构：

[1] Natl Tech Univ Athens, Lab Polymer Technol, Sch Chem Engn, Athens 15780, Greece

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2010年 / 295卷 / 09期

关键词：

biosynthetic diacids; polyamides; solid-state polymerization; SOLID-STATE POLYAMIDATION; CRYSTAL-STRUCTURE; NYLONS; POLYMORPHISM; MELT;

D O I：

10.1002/mame.201000057

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Long-aliphatic-segment polyamides were prepared based on hexamethylenediamine and alpha,omega-(CH2)(x) biosynthetic diacids (x = 10, 11, 12). The pertinent monomers (salts) were isolated as solids, thoroughly characterized for the first time, and then submitted to an anhydrous melt prepolymerization technique. The obtained prepolymers exhibited (M) over bar (n) in the range of 5 100-11 800 g.mol(-1), and the molecular weight was further increased by up to 55% through solid-state finishing. The suggested overall polyamidation cycle was conducted at short melt-reaction times, so as to avoid any thermal degradation, and was proved efficient, indicating similar reactants polymerizability independently of the methylene content.

引用

页码：812 / 821

页数：10

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