@article{delpouve_water_2012,
	title = {Water {Barrier} {Properties} in {Biaxially} {Drawn} {Poly}(lactic acid) {Films}},
	volume = {116},
	issn = {1520-6106},
	url = {http://dx.doi.org/10.1021/jp211670g},
	doi = {10.1021/jp211670g},
	abstract = {Crystallization is among the easiest ways to improve polymer barrier properties because of the tortuosity increase within the material and the strong coupling between amorphous and crystalline phases. In this work, poly(lactic acid) (PLA) films have undergone α? thermal crystallization or different drawing processes. Although no effect of α? thermal crystallization on water permeability is observed, the drawing processes lead to an enhancement of the PLA barrier properties. This work clearly shows that, in the case of PLA, the crystallinity degree is not the main parameter governing the barrier properties contrary to the crystalline and amorphous phase organizations which play a key role. X-ray analyses confirm that the macromolecular chain orientation in the amorphous phase is the main cause of the improvement of the drawn PLA water barrier property. This improvement is due to the orthotropic structure formation for sufficient draw ratios, particularly when using the Simultaneous Biaxial drawing mode. Moreover, independently of the draw conditions, the drawing process tends to reduce the plasticization coefficient. Consequently, the drawn material barrier properties are not much affected by the water passage.},
	number = {15},
	urldate = {2014-12-18},
	journal = {The Journal of Physical Chemistry B},
	author = {Delpouve, Nicolas and Stoclet, Grégory and Saiter, Allisson and Dargent, Eric and Marais, Stéphane},
	year = {2012},
	keywords = {alpha-form, melting behavior, nonisothermal crystallization, packaging materials, poly(l-lactic acid), polylactic acid, rearranging region size, semicrystalline polymers, transport-properties, vapor   barrier},
	pages = {4615--4625}
}

{"_id":"K38B6HqPXmqjLYMXf","authorIDs":[],"author_short":["Delpouve, N.","Stoclet, G.","Saiter, A.","Dargent, E.","Marais, S."],"bibbaseid":"delpouve-stoclet-saiter-dargent-marais-waterbarrierpropertiesinbiaxiallydrawnpolylacticacidfilms-2012","bibdata":{"bibtype":"article","type":"article","title":"Water Barrier Properties in Biaxially Drawn Poly(lactic acid) Films","volume":"116","issn":"1520-6106","url":"http://dx.doi.org/10.1021/jp211670g","doi":"10.1021/jp211670g","abstract":"Crystallization is among the easiest ways to improve polymer barrier properties because of the tortuosity increase within the material and the strong coupling between amorphous and crystalline phases. In this work, poly(lactic acid) (PLA) films have undergone α? thermal crystallization or different drawing processes. Although no effect of α? thermal crystallization on water permeability is observed, the drawing processes lead to an enhancement of the PLA barrier properties. This work clearly shows that, in the case of PLA, the crystallinity degree is not the main parameter governing the barrier properties contrary to the crystalline and amorphous phase organizations which play a key role. X-ray analyses confirm that the macromolecular chain orientation in the amorphous phase is the main cause of the improvement of the drawn PLA water barrier property. This improvement is due to the orthotropic structure formation for sufficient draw ratios, particularly when using the Simultaneous Biaxial drawing mode. Moreover, independently of the draw conditions, the drawing process tends to reduce the plasticization coefficient. Consequently, the drawn material barrier properties are not much affected by the water passage.","number":"15","urldate":"2014-12-18","journal":"The Journal of Physical Chemistry B","author":[{"propositions":[],"lastnames":["Delpouve"],"firstnames":["Nicolas"],"suffixes":[]},{"propositions":[],"lastnames":["Stoclet"],"firstnames":["Grégory"],"suffixes":[]},{"propositions":[],"lastnames":["Saiter"],"firstnames":["Allisson"],"suffixes":[]},{"propositions":[],"lastnames":["Dargent"],"firstnames":["Eric"],"suffixes":[]},{"propositions":[],"lastnames":["Marais"],"firstnames":["Stéphane"],"suffixes":[]}],"year":"2012","keywords":"alpha-form, melting behavior, nonisothermal crystallization, packaging materials, poly(l-lactic acid), polylactic acid, rearranging region size, semicrystalline polymers, transport-properties, vapor barrier","pages":"4615–4625","bibtex":"@article{delpouve_water_2012,\n\ttitle = {Water {Barrier} {Properties} in {Biaxially} {Drawn} {Poly}(lactic acid) {Films}},\n\tvolume = {116},\n\tissn = {1520-6106},\n\turl = {http://dx.doi.org/10.1021/jp211670g},\n\tdoi = {10.1021/jp211670g},\n\tabstract = {Crystallization is among the easiest ways to improve polymer barrier properties because of the tortuosity increase within the material and the strong coupling between amorphous and crystalline phases. In this work, poly(lactic acid) (PLA) films have undergone α? thermal crystallization or different drawing processes. Although no effect of α? thermal crystallization on water permeability is observed, the drawing processes lead to an enhancement of the PLA barrier properties. This work clearly shows that, in the case of PLA, the crystallinity degree is not the main parameter governing the barrier properties contrary to the crystalline and amorphous phase organizations which play a key role. X-ray analyses confirm that the macromolecular chain orientation in the amorphous phase is the main cause of the improvement of the drawn PLA water barrier property. This improvement is due to the orthotropic structure formation for sufficient draw ratios, particularly when using the Simultaneous Biaxial drawing mode. Moreover, independently of the draw conditions, the drawing process tends to reduce the plasticization coefficient. Consequently, the drawn material barrier properties are not much affected by the water passage.},\n\tnumber = {15},\n\turldate = {2014-12-18},\n\tjournal = {The Journal of Physical Chemistry B},\n\tauthor = {Delpouve, Nicolas and Stoclet, Grégory and Saiter, Allisson and Dargent, Eric and Marais, Stéphane},\n\tyear = {2012},\n\tkeywords = {alpha-form, melting behavior, nonisothermal crystallization, packaging materials, poly(l-lactic acid), polylactic acid, rearranging region size, semicrystalline polymers, transport-properties, vapor barrier},\n\tpages = {4615--4625}\n}\n\n","author_short":["Delpouve, N.","Stoclet, G.","Saiter, A.","Dargent, E.","Marais, S."],"key":"delpouve_water_2012","id":"delpouve_water_2012","bibbaseid":"delpouve-stoclet-saiter-dargent-marais-waterbarrierpropertiesinbiaxiallydrawnpolylacticacidfilms-2012","role":"author","urls":{"Paper":"http://dx.doi.org/10.1021/jp211670g"},"keyword":["alpha-form","melting behavior","nonisothermal crystallization","packaging materials","poly(l-lactic acid)","polylactic acid","rearranging region size","semicrystalline polymers","transport-properties","vapor barrier"],"downloads":0},"bibtype":"article","biburl":"https://api.zotero.org/users/1945697/collections/U68KK7N9/items?key=7SLanHA9r9BiESqlMZNOZsrT&format=bibtex&limit=100","creationDate":"2014-12-18T14:03:47.520Z","downloads":0,"keywords":["alpha-form","melting behavior","nonisothermal crystallization","packaging materials","poly(l-lactic acid)","polylactic acid","rearranging region size","semicrystalline polymers","transport-properties","vapor barrier"],"search_terms":["water","barrier","properties","biaxially","drawn","poly","lactic","acid","films","delpouve","stoclet","saiter","dargent","marais"],"title":"Water Barrier Properties in Biaxially Drawn Poly(lactic acid) Films","year":2012,"dataSources":["D9umoxGHAE8PaxPy5"]}