Polybutylene succinate, a potential bio-degradable polymer: synthesis, copolymerization and bio-degradation

Abstract

Poly(butylene succinate) is one of the emerging bio-degradable polymer, which has huge potential to be employed in a wide range of applications. Further, it is also recognized as one of...

Ti(OBu)4 in combination with Sn(Oct)2: An efficient catalyst system for high molecular weight poly(butylene succinate) synthesis

“…However, high cost and lack of high molecular weight, required for industrial applications restricts the use of PBS in commercial scale 4 . Thus, in order to improve the mechanical, physical and thermal properties as well as to widen the scope of PBS towards in commercial implementation, various physical (polymer blends) and chemical methods (co‐polymerizaton and chain extension) have been explored in the literature 5 . Generally, synthesis of PBS involves two steps, esterification or trans‐esterification followed by polycondensation reaction.…”

“…Hence, significant efforts have already been made towards the development of mild and efficient catalyst system for the synthesis of high molecular weight PBS. Thus, various catalyst systems have already been explored in the literature towards the synthesis of high molecular weight PBS 5 . Among them, titanium tetra alkoxides and tin based catalysts are found to be most widely used and efficient catalyst towards the synthesis of PBS as well its copolymers 5 …”

“…Thus, various catalyst systems have already been explored in the literature towards the synthesis of high molecular weight PBS 5 . Among them, titanium tetra alkoxides and tin based catalysts are found to be most widely used and efficient catalyst towards the synthesis of PBS as well its copolymers 5 …”

Ti(OBu)4/B(OBu)3: Deciphering the mechanism for the formation of high molecular weight poly(butylene succinate)

“…Consequently, various catalyst systems have been reported in the literature for the synthesis of high molecular weight PBS (Table 1). 5 …”

“…Generally, tin based catalysts exhibits better catalytic activity than the conventional titanium based catalysts 5,6 . This might be due to the fact that tin based catalysts forms a modified metal alkoxide complex, which is believed to be highly selective towards esterification reaction 5,6 . Whereas titanium based catalysts is believed to be less selective and promotes both esterification and trans‐esterification reactions 7…”