Condensation polymerization method for preparing hydroxylated acid condensation polymer

• Main Author: LINBO,WANG WU
• Format: Patent
• Language: English
• Published: 04.04.2007
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention provides a condensation polymerization process for preparing hydroxylated acid condensation polymer, characterized in that hydroxylated acid or hydroxylated acid oligomer are subject to molten condensation polymerization reaction or molten / solid phase condensation polymerization reaction at the presence of ionic liquid catalytic action. The obtained hydroxylated acid condensation polymer contains no metallic elements.