赵明良,俞建勇,李发学,王学利
ZHAO Ming-liang 1,YU Jian-yong 2,LI Fa-xue 1,WANG Xue-li 2(1.College of Textile

• 1:东华大学纺织学院
• 2:东华大学现代纺织研究院

摘要(Abstract)：

在30 L聚合装置上,成功制备了一系列用聚乙二醇(PEG)和间苯二甲酸乙二醇酯-5-磺酸钠(SIPE)改性的共聚酯切片(MECDP)。核磁氢谱(1H-NMR)的测试结果表明:聚合物大分子链中的精对苯二甲酸(PTA)与SIPE单元的摩尔比以及PTA与PEG单元的质量比,与其相应的投料比基本一致;共聚酯的分子链化学结构与设想的分子链化学结构大致吻合。差示扫描量热法(DSC)试验结果表明:玻璃化转变温度(T)g、冷结晶温度(Tc)c和熔点(Tm)均随着PEG质量分数的增加而逐渐下降。色度(b值)变化的测试结果表明:PEG的质量分数越高,干燥温度越高,干燥时间越长,其b值会变得越大。
In a 30 L reactor,copolyesters based on poly(ethylene terephthalate)(PET) were prepared with sodium-5-sulfo-bis-(hydroxyethyl)-isophthalate(SIPE) and poly(ethylene glycol)(PEG) units as modifiers.The chemical structures were characterized by 1 H-NMR,and experimental results suggested that the actual ratio of PTA,SIPE and PEG were mainly accordant with the relative feed ratio.The chemical structures were better consistent with the expected chemical structures.Experimental results of DSC indicated that glass transition temperature(T g),cold-crystallization temperature(T cc) and melting temperature(T m) gradually reduced when the feed amount of flexible PEG units increased.Experimental results of b value showed that the b value increased when more PEG units were incorporated into,or when the drying temperaturewas increased,or when the drying time was prolonged.

关键词(KeyWords)： 共聚酯;化学结构;热性能
copolyester,chemical structure,thermal property

Abstract:

Keywords:

基金项目(Foundation): 中央高校基本科研业务费专项资金(12D10143);; 国家科技支撑计划课题“超仿棉合成纤维及其纺织品产业化技术开发”(2011BAE05B00)

作者(Author): 赵明良,俞建勇,李发学,王学利
ZHAO Ming-liang 1,YU Jian-yong 2,LI Fa-xue 1,WANG Xue-li 2(1.College of Textile

DOI: 10.16090/j.cnki.hcxw.2013.05.006

参考文献(References)：

• [1]Kint DPR,Munoz-Guerra S.Modification of the thermal propertiesand crystallization behaviour of poly(ethylene terephthalate)by copolymer-ization[J].Polymer International,2003,52:321-322.
• [2]Bech L,Meylheuc T,Lepoittevin B,et al.Chemical surface modifica-tion of poly(ethylene terephthalate)fibers by aminolysis and grafting ofcarbohydrates[J].Journal of Polymer Science Part A:Polymer Chemistry,2007,45:2 172-2 174.
• [3]Inagaki N,Narushim K,Tuchida N,et al.Surface characterization ofplasma-modified poly(ethylene terephthalate)film surfaces[J].Journal ofPolymer Science Part B:Polymer Physics,2004,42:3 727-3 728.
• [4]Eisenberg A,Hird B,Moore RB.A new multiplet-cluster model forthe morphology of random ionomers[J].Macromolecules,1990,23:4 098-4 099.
• [5]Guo XY,Gu LX,Feng XX.The glass transition,crystallization,andmelting characteristics of a class of polyester ionomers[J].Journal of Ap-plied Polymer Science,2002,86:3 660-3 663.
• [6]Pal SK,Gandhi RS,Kothari VK.Effect of comonomer on structureand properties of textured cationic dyeable polyester[J].Journal of Ap-plied Polymer Science,1996,61:401-402.
• [7]Li G,Yang S,Jiang J,et al.The complicated influence of branching oncrystallization behavior of poly(ethylene terephthalate)[J].Journal of Ap-plied Polymer Science,2008,110:1649-1650.
• [8]陈放,方小兵,张大省.对苯二甲酸酯/聚乙二醇共聚醚酯的热性能研究[J].合成纤维,2011,40(12):10-11.
• [9]Hsiao K-J,Kuo J-L,Tang J-W,et al.Physics and kinetics of alka-line hydrolysis of cationic dyeable poly(ethylene terephthalate)(CDPET)and polyethylene glycol(PEG)-modified CDPET polymers:Effects of dimethyl5-sulfoisophthalate sodium salt/PEG content and the number-average molecular weight of the PEG[J].Journal of Applied Polymer Sci-ence,2005,98:550-554.
• [10]Liu L,Cheng L,Yu J,et al.Evaluation of the availability of easy cationic dyeable copolyester fibers as electrostatic flocking piles[J].Jour-nal of Applied Polymer Science,2011,120:195-196.
• [11]赵明良,俞建勇,李发学,等.改性共聚酯的化学结构及热降解性能[J].合成纤维,2013,42(2):22-27.
• [12]Yue QF,Wang CX,Zhang LN,et al.Glycolysis of poly(ethylene terephthalate)(PET)using basic ionic liquids as catalysts[J].PolymerDegradation and Stability,2011,96:400-402.
• [13]Imran M,Kim B-K,Han M,et al.Sub-and supercritical glycolysis of polyethylene terephthalate(PET)into the monomer bis(2-hydroxyethyl)terephthalate(BHET)[J].Polymer Degradation and Stability,2010,95:1688-1690.
• [14]Chaouch W,Dieval F,Le Nouen D,et al.1 H-NMR spectroscopic study of the effect of aging vascular prostheses made of poly(ethylene terephthalate)on the macromolecular weight[J].Journal of Biomedical Materials Research Part A,2009,91A:939-943.
• [15]Kiyotsukuri T,Masuda T,Tsutsumi N,et al.Poly(ethylene-tereph-thalate)copolymers with a smaller amount of poly(ethylene glycol)s and poly(butylene glycol)s[J].Polymer,1995,36:2629-2630.
• [16]孙玉,郑帼.DSC法对阳离子染料可染共聚酯热性能的研究[J].合成纤维工业,2008,31(3):29-30.
• [17]Varma DS,Maheswari A,Gupta V,et al.Poly(ester-ether)fibres[J].Die Angewandte Makromolekulare Chemie,1980,90:23-24.