Effects of quaternization on properties of biodegradable Poly(butylene succinate) with low crystallinity

Abstract

Quaternized low-crystalline poly(butylene succinate) (PBS) was synthesized with glycidyl trimethyl ammonium chloride (GTMA) by quaterisation reaction. The mechanical properties and thermal stability of quaternized low-crystalline PBS with different GTMA contents were investigated. It was found that when 5% GTMA was added, the mechanical properties were most favorable. The DSC and TGA results showed that as the GTMA content increased, the thermal stability of quaternized PBS was reinforced, the thermal decomposition temperature increased by 13 °C. The results showed that the quaternized low-crystalline PBS exhibited the excellent thermal and mechanical properties. Meanwhile, the crystallinity of quaternized PBS decreased and its contact angle is higher than the pure PBS. It could lay a foundation of the application of low-crystalline PBS composite in different fields through the research of various GTMA contents.