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    					Preparation of starch esters with crosslinking structures derived from dianhydride  | 
  					 
  					  										
						Huijuan CHU( ), Hongliang WEI, Jing ZHU, Shouyin HU | 
					 
															
						| School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China | 
					 
										
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													     		                            						                            																	    Abstract  Starch is a kind of natural polymer used in many industrial fields because of its low cost, availability and biodegradation. Potato starch was modified by esterification with pyromellitic dianhydride, and the products were obtained with crosslinking structures. Orthogonal experiments showed that reactive temperature was the primary influencing factor. The product prepared at 40°C for 3 h with the mass ratio of starch and dianhydride of 16∶1 and pH value of 7.5 exhibited a degree of substitution of 11%. FTIR and UV analysis verified the formation of starch esters. 
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															| Keywords 
																																																				potato starch  
																		  																																				pyromellitic dianhydride  
																		  																																				esterification  
																		  																																				crosslink  
																																			  
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																																Corresponding Author(s):
																CHU Huijuan,Email:chuhj@haut.edu.cn   
																													     		
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																																																													Issue Date: 05 March 2011
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															| 1 | 
															 
														     Zhou J, Zhang J, Ma Y, Tong J. Surface photo-crosslinking of corn starch sheets. Carbohydrate Polymers , 2008, 74(3): 405-410  doi: 10.1016/j.carbpol.2008.03.006
														     															 | 
																  
																														
															| 2 | 
															 
														     Shi R, Bi J, Zhang Z, Zhu A, Chen D, Zhou X, Zhang L, Tian W. The effect of citric acid on the structural properties and cytotoxicity of the polyvinyl alcohol/starch films when molding at high temperature. Carbohydrate Polymers , 2008, 74(4): 763-770  doi: 10.1016/j.carbpol.2008.04.045
														     															 | 
																  
																														
															| 3 | 
															 
														     Simi C K, Emilia Abraham T. Hydrophobic grafted and cross-linked starch nanoparticles for drug delivery. Bioprocess and Biosystems Engineering , 2007, 30(3): 173-180  doi: 10.1007/s00449-007-0112-5
														     															 | 
																  
																														
															| 4 | 
															 
														     Deetae P, Shobsngob S, Varanyanond W, Chinachoti P, Naivikul O, Varavinit S. Preparation, pasting properties and freeze-thaw stability of dual modified crosslink-phosphorylated rice starch. Carbohydrate Polymers , 2008, 73(2): 351-358  doi: 10.1016/j.carbpol.2007.12.004
														     															 | 
																  
																														
															| 5 | 
															 
														     Zhang J, Li A, Wang A. Zhang J, Li A, Wang A. Study on superabsorbent composite. VI. Preparation, characterization and swelling behaviors of starch phosphate-graft-acrylamide/attapulgite superabsorbent composite. Carbohydrate Polymers , 2006, 65(2): 150-158  doi: 10.1016/j.carbpol.2005.12.035
														     															 | 
																  
																														
															| 6 | 
															 
														     Delville J. Delville J, Joly C, Dole P, Bliard C. Influence of photocrosslinking on the retrogradation of wheat starch based films. Carbohydrate Polymers , 2003, 53(4): 373-381  doi: 10.1016/S0144-8617(03)00141-3
														     															 | 
																  
																														
															| 7 | 
															 
														     Delville J. Delville J, Joly C, Dole P, Bliard C. Solid state photocrosslinked starch based films: a new family of homogeneous modified starches. Carbohydrate Polymers , 2002, 49(1): 71-81  doi: 10.1016/S0144-8617(01)00302-2
														     															 | 
																  
																														
															| 8 | 
															 
														     Staroszczyk H. Microwave-assisted silication of potato starch. Carbohydrate Polymers , 2009, 77(3): 506-515  doi: 10.1016/j.carbpol.2009.01.025
														     															 | 
																  
																														
															| 9 | 
															 
														     El-Tahlawy K, Venditti R A, Pawlak J J. Aspects of the preparation of starch microcellular foam particles crosslinked with glutaraldehyde using a solvent exchange technique. Carbohydrate Polymers , 2007, 67(3): 319-331  doi: 10.1016/j.carbpol.2006.05.029
														     															 | 
																  
																														
															| 10 | 
															 
														     Juntanon K, Niamlang S, Rujiravanit R, Sirivat A. Electrically controlled release of sulfosalicylic acid from crosslinked poly(vinyl alcohol) hydrogel. International Journal of Pharmaceutics , 2008, 356(1-2): 1-11  doi: 10.1016/j.ijpharm.2007.12.023
														     															 | 
																  
																														
															| 11 | 
															 
														     Dae H K, Seong K N, Jong S P, Kee J Y, Dae W I. Studies on the preparation of hydrolyzed starch-g-PAN (HSPAN)/PVA blend films-effect of the reaction with epichlorohydrin. European Polymer Journal , 2002, 38(6): 1199-1204  doi: 10.1016/S0014-3057(01)00301-9
														     															 | 
																  
																														
															| 12 | 
															 
														     Du Y L, Cao Y, Lu F, Li F, Cao Y, Wang X L, Wang Y Z. Biodegradation behaviors of thermoplastic starch (TPS) and thermoplastic dialdehyde starch (TPDAS) under controlled composting conditions. Polymer Testing , 2008, 27(8): 924-930  doi: 10.1016/j.polymertesting.2008.08.002
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