BIODEGRADABLE PLASTIC MATERIALS

摘要

A method for obtaining polyamides having a general formula [-CO-R'<SUB>1</SUB>-CONH-R<SUB>2</SUB>-NH-] comprises mixing a first compound having a general formula R<SUB>1</SUB>(COOH)<SUB>2</SUB> with a further compound having a general formula R<SUB>2</SUB>(NCO)<SUB>2</SUB>, to bring about a polymerisation reaction, wherein R<SUB>1</SUB> is a radical provided with at least an alcoholic function; a biodegradable polyamide having a general formula [-CO-R'<SUB>1</SUB>-CONH-R<SUB>2</SUB>-NH-] is obtained from a first compound R<SUB>1</SUB>(COOH)<SUB>2 </SUB>and from a further compound R<SUB>2</SUB>(NCO)<SUB>2</SUB>, wherein R<SUB>1</SUB> comprises a radical provided 10 with at least an alcoholic function.