以过氧化苯甲酰(BPO)为引发剂,甲基丙烯酸缩水甘油酯(GMA)为反应单体,通过熔融接枝反应将GMA接枝到聚己内酯(PCL)上,制备了PCL-g-GMA.以PCL-g-GMA为增容剂,制备了PCL/淀粉/PCL-g-GMA共混物.扫描电镜表明,PCL/淀粉共混物界面粘接力差、淀粉出现团聚.然而加入PCL-g-GMA后,PCL/淀粉/PCL-g-GMA中淀粉分散变得均匀,且淀粉颗粒被PCL包裹,两相界面更加模糊.拉伸实验表明,加入PCL-g-GMA增容剂后,共混物的拉伸强度由(12.3±2.1) MPa增加到(17.0±3.2) MPa,拉伸模量由(4.2±1.8) GPa增加到(5.7±2.9) GPa.断裂伸长率由(210±16)％增加到(803±40)％.
参考文献
| [1] | Alain Copinet;Celine Bertrand;Antoine Longieras;Veronique Coma;Yves Couturier .Photodegradation and Biodegradation Study of a Starch and Poly(Lactic Acid) Coextruded Material[J].Journal of polymers and the environment,2003(4):169-179. |
| [2] | Avella M. .Preparation and characterisation of compatibilised polycaprolactone/starch composites[J].Polymer: The International Journal for the Science and Technology of Polymers,2000(10):3875-3881. |
| [3] | John J;Tang J;Yang ZH;Bhattacharya M .Synthesis and characterization of anhydride-functional polycaprolactone[J].Journal of Polymer Science, Part A. Polymer Chemistry,1997(6):1139-1148. |
| [4] | Juntuek, P.;Ruksakulpiwat, C.;Chumsamrong, P.;Ruksakulpiwat, Y. .Effect of glycidyl methacrylate-grafted natural rubber on physical properties of polylactic acid and natural rubber blends[J].Journal of Applied Polymer Science,2012(1):745-754. |
| [5] | C. -H. Kim;K. Y. Cho;J. -K. Park .Grafting of glycidyl methacrylate onto polycaprolactone: preparation and characterization[J].Polymer: The International Journal for the Science and Technology of Polymers,2001(12):5135-5142. |
| [6] | Eui-Jun Chol;Chang-Hyeon Kim;Jung-Ki Park .Structure-Property Relationship in PCL/Starch Blend Compatibilized with Starch-g-PCL Copolymer[J].Journal of Polymer Science, Part B. Polymer Physics,1999(17):2430-2438. |
| [7] | Li Chen;Xueyu Qiu;Mingxiao Deng;Zhongkui Hong;Rui Luo;Xuesi Chen;Xiabin Jing .The starch grafted poly(L-lactide)and the physical properties of its blending composites[J].Polymer: The International Journal for the Science and Technology of Polymers,2005(15):5723-5729. |
| [8] | CHANG-HYEON KIM;KUK YOUNG CHO;JUNG-KI PARK .Reactive Blends of Gelatinized Starch and Polycaprolactone-g-Glycidyl Methacrylate[J].Journal of Applied Polymer Science,2001(6):1507-1516. |
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