Research and industrialization status quo of poly(butylene succinate)

In light of the fact that poly(butylene succinate)(PBS) is a kind of non-toxic and completely biodegradable polyester with good processing and using properties,the paper introduced two raw materials used for synthesis of PBS,that is,succinic acid(SA) and 1,4-butanediol(BD),including their advantages and disadvantages,as well as various preparation methods,discussed the synthetic technologies of PBS,including the two-step process including direct esterification and polycondensation,and concluded that the optimal reaction process was as follows:n(SA) ∶ n(BD) = 1 ∶ 1.2- 1 ∶ 1.3,esterification temperature of 150- 170 ℃,polycondensation reaction temperature of 220 ℃ and catalysts of titanium compounds,stannous chloride,p-toluene sulfonic acid,etc.A symtematic review of PBS was conducted in terms of characterisation,modification,and industrialization.The findings provides a useful reference for PBS theory study and industrialization.