Fabrication of high toughness poly (lactic acid) by combining plasticization with cross - linking reaction / Zhongjie Ren in Industrial & engineering chemistry research, Vol. 51 N° 21 (Mai 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 21 (Mai 2012) . - pp. 7273-7278 Titre : Fabrication of high toughness poly (lactic acid) by combining plasticization with cross - linking reaction Type de document : texte imprimé Auteurs : Zhongjie Ren, Auteur ; Huihui Li, Auteur ; Xiaoli Sun, Auteur Année de publication : 2012 Article en page(s) : pp. 7273-7278 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Plasticization Résumé : A new method to produce high toughness Poly(lactic acid) (PLA) was introduced in this study. The blends of low molecular weight triacetin (TAC) and oligomeric poly(1,3-butylene glycol adipate) (PBGA) were first used as multiple plasticizers to lubricate PLA and then the plasticized PLA cross-linked with triallyl isocyanurate (TAIC) through electron beam irradiation. In this way, a kind of stable PLA material with high elongation at break was obtained. The elongation at break of the prepared material is more than 260% with a tensile strength of 23.5 MPa when the irradiation dose is 10 Mrad. Detailed studies of Fourier transform infrared (FTIR) spectra and viscosity experiments revealed that both the self-cross-linking of the PLA molecular chains and the cross-linking between the molecular chains of PLA and PBGA could occur. This results in the remarkable improvement in the performance of the obtained materials. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25948468 [article] Fabrication of high toughness poly (lactic acid) by combining plasticization with cross - linking reaction [texte imprimé] / Zhongjie Ren, Auteur ; Huihui Li, Auteur ; Xiaoli Sun, Auteur . - 2012 . - pp. 7273-7278. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 21 (Mai 2012) . - pp. 7273-7278 Mots-clés : Plasticization Résumé : A new method to produce high toughness Poly(lactic acid) (PLA) was introduced in this study. The blends of low molecular weight triacetin (TAC) and oligomeric poly(1,3-butylene glycol adipate) (PBGA) were first used as multiple plasticizers to lubricate PLA and then the plasticized PLA cross-linked with triallyl isocyanurate (TAIC) through electron beam irradiation. In this way, a kind of stable PLA material with high elongation at break was obtained. The elongation at break of the prepared material is more than 260% with a tensile strength of 23.5 MPa when the irradiation dose is 10 Mrad. Detailed studies of Fourier transform infrared (FTIR) spectra and viscosity experiments revealed that both the self-cross-linking of the PLA molecular chains and the cross-linking between the molecular chains of PLA and PBGA could occur. This results in the remarkable improvement in the performance of the obtained materials. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25948468

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