Article Sidebar

Published: 2012-06-30
Abstract Views: 65
DOI: https://doi.org/10.53747/nst.v2i2.278
Issue
Vol. 2 No. 2 (2012)
Section
Articles
How to Cite
TRAN , M. Q., TRAN , B. D., MOHAMMED IQBAL SHUEB, & KAMARUDDIN BIN HASHIM. (2012). IMPROVEMENT OF THERMAL STABILITY OF THE PLASTICIZED POLY(L-LACTIC ACID) PLLA BY RADIATION CROSSLINKING. Nuclear Science and Technology, 2(2), 1-6. https://doi.org/10.53747/nst.v2i2.278

IMPROVEMENT OF THERMAL STABILITY OF THE PLASTICIZED POLY(L-LACTIC ACID) PLLA BY RADIATION CROSSLINKING

TRAN MINH QUYNH1, TRAN BANG DIEP1, MOHAMMED IQBAL SHUEB2, KAMARUDDIN BIN HASHIM2
1 Hanoi Irradiation Center, Vietnam Atomic Energy Institute (VINATOM
2 Radiation Processing Technology Division, Malaysian Nuclear Agency, Malaysia

Main Article Content

Abstract

Poly(lactic acid), PLLA was plasticized using low molecular weight polyethylene glycol, PEG 1000 in order to improve its toughness and thereby promoting the applications of PLLA based materials. Differential scanning calorimetry data showed that the presence of PEG was much reduced the glass transition temperature as well as melting point of PLLA. This reduction increased with the PEG content, but the PLLA blend with 5% PEG was chosen for preparation of the radiation-induced crosslinking samples. The cold crystallization of the crosslinked PLLA was much reduced and its melting point shifted to lower temperature with smaller area by irradiation. Typical crosslinked PLLA showed very low crystallinity and high heat stability as indicated by dynamic mechanical analysis.

Article Details

Keywords

Poly(L-lactic acid), polyethylene glycol, plasticization, radiation crosslinking

References

[1] Vert M, Feijen J, Albertsson A, Scott G, Chiellini E. Biodegradable Polymers and Plastics. Royal Society of Chemistry: London, 1992, p.64.
[2] Platt D. Biodegradable polymer, Rapra Technology Limited., United Kingdom, 2006, p.5.
[3] Garlotta D. Literature review of poly(lactic acid). J. Polym. Environ. 2001, 9(2), 63-84.
[4] Nugroho P. Mitomo H, Yoshii F, Kume T. Degradation of poly(L-lactic acid) by γ-irradiation. Polymer Degradation and Stability 2001, 72, 337-343.
[5] Mitomo H, Kaneda A, Quynh TM, Nagasawa N, Yoshii F. Improvement of heat stability of poly(L-lacticacid) by radiation-induced crosslinking. Polymer 2005, 46, 4695-03.
[6] Martin O, Avérous L. Poly (lactic acid): Plasticization and properties of biodegradable multiphase systems. Polymer 2001, 42, 6209-6219.
[7] Ljungberg N, Wesslen B. Preparation and Properties of Plasticized Poly(lacticacid) Films. Biomacromolecules 2005, 6, 1789-1796.
[8] Sweet GE, Bell JP. Multiple endotherm melting behavior in relation to polymer morphology, J. Apply Polymer Science. Part A-2: Polymer Physics 1972, 10, 1273-1283.
[9] Hu Y, Hu YS, Topolkaraev V, Hiltner A, Baer E. Aging of poly(lactide)/poly(ethylene glycol) blends. Part 1. Poly(lactide) with low stereoregularity. Polymer 2003, 44, 5701-5710.
[10] Hu Y, Hu YS, Topolkaraev V, Hiltner A, Baer E. Aging of poly(lactide)/poly(ethylene glycol) blends. Part 2. Poly(lactide) with high stereoregularity. Polymer 2003, 44, 5711-5720.
[11] Quynh TM, Mitomo H, Nagasawa N, Wada Y, Yoshii F, Tamada M. Properties of crosslinked polylactides (PLLA & PDLA) by radiation and its biodegradability. European Polymer Journal 2007, 43(5), 1779-1785.
[12] Jin F, Hyon SH, Iwata H, Tsutsumi S. Crosslinking of poly(l-lactide) by γ-irradiation. Macromolecular Rapid Communications 2002, 23, 909-912.