摘要
聚酯具有独特的可生物降解性、生物可吸收性及生物相容性。现有聚酯产品生产原料一般来源于石油化工材料,并非生物质材料。以亚甲基丁二酸(IA)、磺化产物丁二酸-2-甲基磺酸钠(ISNa)和1,4-丁二醇(BD)为原料,采用直接酯化-缩聚法制备了一种新型水溶性聚亚甲基丁二酸丁二醇酯(PBIINa)。考察了催化剂种类、缩聚时间、体系温度等对PBIINa性能的影响。利用傅立叶红外光谱(FT-IR)、核磁共振氢谱(1H-NMR)对产物结构进行表征,并检测该聚酯的水溶性。结果表明,该聚酯的最佳合成条件为:酯化反应时间5.0 h、酯化反应温度180℃、n(BD)/n(IA)/n(ISNa)=1.00∶0.88∶0.17,催化剂SnCl2、体系压力0.1 MPa、缩聚反应时间2.5 h、缩聚反应温度160℃。
Polyester has unique biodegradability,bioabsorbability and biocompatibility.The existing raw materials for the production of polyester products generally come from the petrochemical industry is not a biomass material.In this experiment,methylene succinic acid(IA)and its sulfonated product succinic acid-2-methyl sulfonate(ISNa)and 1,4-butanediol(BD)were used as raw materials,Polycondensation method to prepare a new type of water.based polyester(PBIINa).The effects of catalyst type,polycondensation time and system temperature on the properties of PBIINa were investigated.The product structure was characterized by Fourier transform infrared spectroscopy(FT-IR)and nuclear magnetic resonance(^1H-NMR)and the water solubility of the polyester was tested.The study found that the optimum conditions for the synthesis of the polyester:the esterification stage 5.0 h system temperature 180℃,n(BD)/n(IA)/n(ISNa)=1.00∶0.88∶0.17,catalyzed by SnCl2,system pressure 0.1 MPa,polycondensation stage 2.5 h,system temperature 160℃.
作者
柳伟
Liu Wei(COOEC.FLUOR Heavy Industries Co. Ltd.,Zhuhai Guangdong 519000,China)
出处
《辽宁石油化工大学学报》
CAS
2019年第1期19-24,共6页
Journal of Liaoning Petrochemical University
基金
山东省重点研发计划项目(2018GGX102006)
