改性丁二酸丁二醇聚酯的制备及其结构和性能
|
摘要
在聚丁二酸丁二醇酯(PBS)合成过程中添加经二碳酸二叔丁酯改性的天冬氨酸作为改性单体,成功制备出了一系列聚(丁二酸-天冬氨酸-丁二醇)的无规共聚酯。通过核磁共振(1 H-NMR)、傅里叶变换红外光谱分析(FTIR)、广角X射线衍射、热稳定性能以及接触角测试,对合成的共聚酯的结构和性能进行表征。结果表明:PBS共聚酯的化学结构与理论结构吻合较好;共聚酯的熔点和热稳定性均随改性天冬氨酸单体的增加有所降低,但仍满足材料加工和应用的性能要求;各样品的晶体结构与纯PBS基本相同,均为单斜晶系;PBS共聚酯样品的亲水性能较纯PBS有明显提高。
A series of random copolyesters of poly(succinic acid-aspartate-butanediol)were successfully prepared by adding modified aspartic acid as modified monomer in the process of poly(butylene succinate)(PBS)reaction.1 H-NMR,Fourier transform infrared spectroscopy(FTIR),wide-angle Xray diffraction,thermal stability test and contact angle test were conducted to characterize the structure and properties of synthesized copolyesters.The results show that the chemical structure of PBS copolysters is well adapted with theory,and the melting point and thermal stability of the copolyesters are all decreased with the increase of modified aspartic acid monomer.The crystal structure of each sample is basically the same as that of pure PBS.The hydrophilicity of PBS copolysters samples is significantly higher than that of pure PBS.
A series of random copolyesters of poly(succinic acid-aspartate-butanediol)were successfully prepared by adding modified aspartic acid as modified monomer in the process of poly(butylene succinate)(PBS)reaction.1 H-NMR,Fourier transform infrared spectroscopy(FTIR),wide-angle Xray diffraction,thermal stability test and contact angle test were conducted to characterize the structure and properties of synthesized copolyesters.The results show that the chemical structure of PBS copolysters is well adapted with theory,and the melting point and thermal stability of the copolyesters are all decreased with the increase of modified aspartic acid monomer.The crystal structure of each sample is basically the same as that of pure PBS.The hydrophilicity of PBS copolysters samples is significantly higher than that of pure PBS.
引文
[1]SHIBATA M,INOUE Y,MIYOSHI M.Mechanical properties,morphology,and crystallization behavior of blends of poly(L-lactide)with poly(butylenes succinate-co-L-lactate)and poly(butylenes succiate)[J].Polymer,2006,47(10):3557-3564.
[2]UMARE S S,CHANDURE A S,PANDEY R A.Synthesis,characterization and biodegradable studies of 1,3-propanediol based polyesters[J].Polymer Degradation and Stability,2007,92(3):464-479.
[3]BIKIARIS D N,ACHILIAS D S.Synthesis of poly(alkylene succinate)biodegradable polyesters i.Mathematical modelling of the esterification reaction[J].Polymer,2006,47(13):4851-4860.
[4]张勇,冯增国,刘凤香,等.聚对苯二甲酸丁二醇酯-co-聚丁二酸丁二醇酯-b-聚乙二醇嵌段共聚物的合成及表征[J].化学学报,2002,60(12):2225-2231.
[5]ANANTHARAJ S,JAYAKANNAN M.Amyloid-like hierarchical helical fibrils and conformational reversibility in functional polyesters based on L-amino acids[J].Biomacromolecules,2015,16(3):1009-1020.
[6]刘晓辉,黄关葆,汪少朋.高摩尔质量聚丁二酸丁二醇酯的合成及其摩尔质量与特性黏度的关系[J].塑料工业,2008,36(11):14-16.
[7]孙杰,廖肃然,陆铭,等.脂肪族聚酯的热稳定性研究[J].高分子材料科学与工程,2007,23(6):144-147.
[8]郝瑞,周艺峰,聂王焰.聚(丁二酸丁二醇酯癸二酸丁二醇酯)的合成与表征[J].高分子材料科学与工程,2012,28(3):33-37.
[2]UMARE S S,CHANDURE A S,PANDEY R A.Synthesis,characterization and biodegradable studies of 1,3-propanediol based polyesters[J].Polymer Degradation and Stability,2007,92(3):464-479.
[3]BIKIARIS D N,ACHILIAS D S.Synthesis of poly(alkylene succinate)biodegradable polyesters i.Mathematical modelling of the esterification reaction[J].Polymer,2006,47(13):4851-4860.
[4]张勇,冯增国,刘凤香,等.聚对苯二甲酸丁二醇酯-co-聚丁二酸丁二醇酯-b-聚乙二醇嵌段共聚物的合成及表征[J].化学学报,2002,60(12):2225-2231.
[5]ANANTHARAJ S,JAYAKANNAN M.Amyloid-like hierarchical helical fibrils and conformational reversibility in functional polyesters based on L-amino acids[J].Biomacromolecules,2015,16(3):1009-1020.
[6]刘晓辉,黄关葆,汪少朋.高摩尔质量聚丁二酸丁二醇酯的合成及其摩尔质量与特性黏度的关系[J].塑料工业,2008,36(11):14-16.
[7]孙杰,廖肃然,陆铭,等.脂肪族聚酯的热稳定性研究[J].高分子材料科学与工程,2007,23(6):144-147.
[8]郝瑞,周艺峰,聂王焰.聚(丁二酸丁二醇酯癸二酸丁二醇酯)的合成与表征[J].高分子材料科学与工程,2012,28(3):33-37.