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dc.contributor.author	HERNANDEZ JAIMES, MA. DEL CARMEN
dc.contributor.author	MERAZ RODRIGUEZ, MONICA ALICIA
dc.contributor.author	LARA CORONA, VICTOR HUGO
dc.contributor.author	GONZALEZ BLANCO, GEHOVANA
dc.contributor.author	Buendía González, Leticia
dc.creator	HERNANDEZ JAIMES, MA. DEL CARMEN; 230650
dc.creator	MERAZ RODRIGUEZ, MONICA ALICIA; 10612
dc.creator	LARA CORONA, VICTOR HUGO;x1344188
dc.creator	GONZALEZ BLANCO, GEHOVANA; 131807
dc.creator	Buendía González, Leticia; 42637
dc.date.accessioned	2018-03-07T17:11:06Z
dc.date.available	2018-03-07T17:11:06Z
dc.date.issued	2017
dc.identifier	http://www.redalyc.org/articulo.oa?id=62049878017
dc.identifier.uri	http://hdl.handle.net/20.500.11799/78314
dc.description	Corn starch-based films with trimethyilene glycol (1,3-propanediol) as plasticizer were prepared with the castingtechnique and subject to acid hydrolysis (HCl 1.0 M) at 20 oC. The film degradation was monitored by changes in surfacemorphology, crystallinity, thermal properties and surface wettability. In the first two days, the hydrolysis showed lowadvance to subsequently exhibit a huge increase of the reaction rate. It suggested that surface erosion is the main mechanisminvolved in the film degradation. XRD showed the presence of poly-1,3-propanediol, attributed to condensation reactionof plasticizer in acidic conditions. Thermal analysis showed two endothermic peaks at 110-120 oC attributed to meltingof crystallized amylopectin and to a lesser extent co-crystallized amylose and amylopectin. The temperature of thesepeaks was not affected by hydrolysis time, supporting the idea that hydrolysis reactions are constrained to the film surface.Contact angle measurements indicated a significant decrease of hydrophobicity caused by fractionation of starch chains.
dc.format	application/pdf
dc.language.iso	eng	es
dc.publisher	Universidad Autónoma Metropolitana Unidad Iztapalapa
dc.relation	http://www.redalyc.org/revista.oa?id=620
dc.rights	Revista Mexicana de Ingeniería Química
dc.rights	openAccess	es
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0
dc.source	Revista Mexicana de Ingeniería Química (México) Num.1 Vol.16
dc.subject	Ingeniería	es
dc.subject	Corn starch film 1	es
dc.subject	3-propanediol degradability	es
dc.subject	acid hydrolysis	es
dc.subject	morphology	es
dc.subject.classification	INGENIERÍA Y TECNOLOGÍA
dc.title	Acid hydrolysis of composites based on corn starch and trimethylene glycol as plasticizer	es
dc.type	Artículo	es
dc.ambito	Internacional	es
dc.audience	students	es
dc.audience	researchers	es
dc.type.conacyt	article
dc.identificator	7

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