L-LACTIDE ADDITIVE AND IN VITRO DEGRADATION PERFORMANCE OF POLY(L-LACTIDE) FILMS

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MOBEDI HAMID; MASHAK AREZOU; NEKOOMANESH MEHDI; ORAFAI HOSSEIN

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Journal Paper

Paper Information

Journal: Iranian Polymer Journal Year:2011 | Volume:20 | Issue:3 (129) Page(s): 237-245

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Information Journal Paper

Title

L-LACTIDE ADDITIVE AND IN VITRO DEGRADATION PERFORMANCE OF POLY(L-LACTIDE) FILMS

Author(s)

MOBEDI HAMID | MASHAK AREZOU | NEKOOMANESH MEHDI | ORAFAI HOSSEIN | Issue Writer Certificate

Keywords

POLYESTERS

DEGRADATION

BIOMATERIALS

FILMS

POLY (L-LACTIDE)

L-LACTIDE DIMER

Abstract

Polylactide as a valuable biodegradable polymer is being widely investigated with respect to its synthesis, physical properties, biodegradation and application. The aim of this study is to evaluate hydrolytic DEGRADATION of poly (l-lactide) (PLLA) in the presence of added L-LACTIDE DIMER. High molecular weight PLLA was synthesized in presence of stannous octoate through the ring opening polymerization of l-lactide. PLLA FILMS, containing 0, 1, 3 and 5% (w/w) l-lactide (as additive), were prepared by solution casting. In vitro DEGRADATION of the PLLA matrices were carried out in distilled water at 37°C for the definite periods. The degraded polymer matrices have been characterized by SEC, SEM and DSC techniques after periods of 3 and 6 months DEGRADATION time. It was found that during the first 3 months of DEGRADATION period, the number average molecular weight (¯Mn) of each PLLA film containing l-lactide reduced slower than the control sample. Also, it is shown that the FILMS containing l-lactide have higher crystallinity and melting point in comparison with non-containing l-lactide samples. However, after 6 months, DEGRADATION rate of PLLA matrices containing l-lactide increased due to penetration of water by eluting and removal of l-lactide from PLLA matrices.

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APA: Copy

MOBEDI, HAMID, MASHAK, AREZOU, NEKOOMANESH, MEHDI, & ORAFAI, HOSSEIN. (2011). L-LACTIDE ADDITIVE AND IN VITRO DEGRADATION PERFORMANCE OF POLY(L-LACTIDE) FILMS. IRANIAN POLYMER JOURNAL (ENGLISH), 20(3 (129)), 237-245. SID. https://sid.ir/paper/571065/en

Vancouver: Copy

MOBEDI HAMID, MASHAK AREZOU, NEKOOMANESH MEHDI, ORAFAI HOSSEIN. L-LACTIDE ADDITIVE AND IN VITRO DEGRADATION PERFORMANCE OF POLY(L-LACTIDE) FILMS. IRANIAN POLYMER JOURNAL (ENGLISH)[Internet]. 2011;20(3 (129)):237-245. Available from: https://sid.ir/paper/571065/en

IEEE: Copy

HAMID MOBEDI, AREZOU MASHAK, MEHDI NEKOOMANESH, and HOSSEIN ORAFAI, “L-LACTIDE ADDITIVE AND IN VITRO DEGRADATION PERFORMANCE OF POLY(L-LACTIDE) FILMS,” IRANIAN POLYMER JOURNAL (ENGLISH), vol. 20, no. 3 (129), pp. 237–245, 2011, [Online]. Available: https://sid.ir/paper/571065/en

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