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Recrystallization of L-PLA Fine Particles by Supercritical Anti-Solvent (SAS) Process

Title
Recrystallization of L-PLA Fine Particles by Supercritical Anti-Solvent (SAS) Process
Author
배성열
Keywords
recrystallization; L-PLA; fine particles; supercritical anti-solvent
Issue Date
2006-05
Publisher
한국공업화학회
Citation
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v. 12, No. 3, Page. 387-394
Abstract
Poly-L-lactic acid (L-PLA) particles were produced through a continuous supercritical anti-solvent (SAS) process in an effort to evaluate the possibility of controlling the microparticle size and distribution. SAS experiments were performed by studying the influences of the pressure, temperature, concentration of liquid solution, flow rate of anti-solvent and liquid solution, and nozzle diameter. SEM images of the processed materials were used to analyze the morphology, mean particle size, and particle size distribution (PSD). Upon optimization, L-PLA microparticles were successfully precipitated by the SAS process, using carbon dioxide (CO2) as the supercritical anti-solvent and methylene chloride (CH2Cl2) as the liquid solvent.
URI
http://kiss.kstudy.com/thesis/thesis-view.asp?key=2529941http://repository.hanyang.ac.kr/handle/20.500.11754/107946
ISSN
1226-086x
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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