Citation: SUN Benhui. STUDY ON THE MECHANISM OF NYLON 6, 6 DISSOLVING PROCESS USING CaCl2/MeOH AS THE SOLVENT*[J]. Chinese Journal of Polymer Science, ;1994, 12(1): 57-65. shu

STUDY ON THE MECHANISM OF NYLON 6, 6 DISSOLVING PROCESS USING CaCl2/MeOH AS THE SOLVENT*

SUN Benhui

Received Date: 7 August 1992

A discussion of the mechanism of nylon 6, 6 dissolving process using CaCl2/MeOH as the sol-vent is presented. The calcium chloride forms a complex compound with nylon 6, 6 by breakingthe hydrogen bonds. The melting point of the CaCl2 --nylon 6, 6 complex was found to be reducedby 91K relative to the pure nylon 6, 6 polymer. The role of methanol is somewhat similar to acatalyst. The results demonstrate that the complexation of a Lewis acid (CaCl2) and a Lewis base(nylon 6, 6) can be used to probe intermolecular interactions such as hydrogen bonding in polymers,to modify the polymer properties and mediate its solubility and processing.
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