FABRICATION OF POROUS SCAFFOLDS FROM POLY (D,L-LACTIC ACID) BY LIQUID-LIQUID PHASE SEPARATION

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TALEBI ALI; KHORASANI M.T.; MIRZADEH HAMID

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Paper Information

Journal: Iranian Journal of Polymer Science and Technology Year:2009 | Volume:21 | Issue:6 (ISSUE NO.98) Page(s): 495-501

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Information Journal Paper

Title

FABRICATION OF POROUS SCAFFOLDS FROM POLY (D,L-LACTIC ACID) BY LIQUID-LIQUID PHASE SEPARATION

Author(s)

TALEBI ALI | KHORASANI M.T. | MIRZADEH HAMID | Issue Writer Certificate

Keywords

LIQUID- LIQUID PHASE SEPARATIONQ3

POLY (DQ3

L-LACTIC ACID)Q3

PHASE DIAGRAMQ3

CLOUD POINTQ3

BIODEGRADABLEQ3

Abstract

In this study, porous scaffolds from poly (D,L-lactic acid) have been prepared via LIQUID- LIQUID PHASE SEPARATION method in ternary system of polymer-1,4-dioxane-water. Polymer dissolved in dioxane in 1.5, 2.5 and 5 % wt/v and the solvent/non-solvent ratios were 13/87, 15/85 and 17/83. Cloud point curves prepared by visual turbidometry. In order to obtain porous scaffolds with inter-connected pores structure, each system cooled below its cloud point temperature to achieve phase separation then promptly freezed. Furthermore, sublimation in freeze-dryer took place. Scanning electron microscopy have been used to study the morphologies of the scaffold and average pore sizes from 10 to 37 mm were obtained with variation in systems concentrations. Porosity density and of the scaffolds were measured by volumetric method and 85.5% was achieved. The results show that variation in concentration of ternary system has great effect on morphology, pore size and porosity density of the scaffolds.

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References

PREPARATION OF A MACROPOROUS POLY(L-LACTIDE) SCAFFOLD BY LIQUID-LIQUID PHASE SEPARATION OF A PLLA/1,4-DIOXANE/WATER TERNARY SYSTEM IN THE PRESENCE OF NACL

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APA: Copy

TALEBI, ALI, KHORASANI, M.T., & MIRZADEH, HAMID. (2009). FABRICATION OF POROUS SCAFFOLDS FROM POLY (D,L-LACTIC ACID) BY LIQUID-LIQUID PHASE SEPARATION. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 21(6 (ISSUE NO.98)), 495-501. SID. https://sid.ir/paper/6523/en

Vancouver: Copy

TALEBI ALI, KHORASANI M.T., MIRZADEH HAMID. FABRICATION OF POROUS SCAFFOLDS FROM POLY (D,L-LACTIC ACID) BY LIQUID-LIQUID PHASE SEPARATION. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2009;21(6 (ISSUE NO.98)):495-501. Available from: https://sid.ir/paper/6523/en

IEEE: Copy

ALI TALEBI, M.T. KHORASANI, and HAMID MIRZADEH, “FABRICATION OF POROUS SCAFFOLDS FROM POLY (D,L-LACTIC ACID) BY LIQUID-LIQUID PHASE SEPARATION,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 21, no. 6 (ISSUE NO.98), pp. 495–501, 2009, [Online]. Available: https://sid.ir/paper/6523/en

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