用己二酸,4,4'-联苯酚和对羟基偶氮苯磺酸合成了一种含有磺酸基的液晶离聚物(LCI).将LCI与聚对苯二甲酸丁二醇酯(PBT)、聚丙烯(PP)进行熔融共混制备了PBT/PP/LCI共混物.通过差示扫描量热仪(DSC)、三维红外图像系统和拉伸试验等方法对共混物进行了热性能、微观形态及力学性能分析.测试结果表明LCI的加入,增强了PBT与PP的界面粘接力,降低了PP分散相的尺寸,改善了二者的相容性,从而提高了共混物的拉伸强度和断裂伸长率.
A liquid crystalline ionomer (LCI) was synthesized by use of an interracial condensation reaction from hexanedioic acid, 4, 4'-hydroxybiphenyl, and 4-hydroxyazobenzenesulfonic acid. The LCI was blended with poly (butylene terephthalate)(PBT) and polypropylene (PP). The thermal behavior, morphological structure, and mechanical properties of the blends were investigated by differential scanning calorimetry (DSC), Fourier transform infrared spectroscopic (FT-IR) imaging analysis, and tensile measurement. The LCI interacts with both the dispersed PP phase and the matrix PBT phase by acting as compatibilizer at the interface. The compatibilizer brings about good adhesion at the interfacial, which reduces the disperse phase size and enables a finely PP phase at matrix. The mechanical properties of the ternary blends are improved when a proper amount of LCI is added. This is attributed to enhanced adhesion at the interface, which invokes better mechanical properties in the blends.
参考文献
| [1] | LI R.K.Y.;TJONG S.C. .The Structure and Physical Properties of In Situ Composites Based on Semiflexible Thermotropic Liquid Crystalline Copolyesteramide and Poly(butylene terephthalate)[J].Journal of Polymer Science, Part B. Polymer Physics,2000(3):403-414. |
| [2] | 张爱玲,张宝砚,吕凤柱,雷刚.液晶聚合物对PA1010/滑石粉杂化材料增容作用的研究[J].高分子材料科学与工程,2003(01):136-139. |
| [3] | 张爱玲,张宝砚,吕凤柱,穆强.液晶聚合物/PA1010/滑石粉杂化材料的研究[J].东北大学学报(自然科学版),2002(01):99-101. |
| [4] | Li YM.;Zhang BY.;Feng ZL.;Zhang AL. .Compatibilization of side-chain, thermotropic, liquid-crystalline ionomers to blends of polyamide-1010 and polypropylene[J].Journal of Applied Polymer Science,2002(13):2749-2754. |
| [5] | Zhang BY;Tian M;Meng FB;He XZ .Synthesis and characterization of main chain liquid crystalline ionomers containing sulphonate groups[J].Liquid Crystals: An International Journal in the Field of Anisotropic Fluids,2005(8):997-1003. |
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