Studies on the interactions of CO2 with biodegradable poly(dl-lactic acid) and poly(lactic acid-co-glycolic acid) copolymers using high pressure ATR-IR and high pressure rheology

Polymer ◽  
2010 ◽  
Vol 51 (6) ◽  
pp. 1425-1431 ◽  
Author(s):  
Hongyun Tai ◽  
Clare E. Upton ◽  
Lisa J. White ◽  
Ronny Pini ◽  
Giuseppe Storti ◽  
...  
Keyword(s):  
High Pressure ◽  
Lactic Acid ◽  
Glycolic Acid ◽  
Poly Lactic Acid ◽  
Biodegradable Poly

Biodegradable poly(lactide-co-glycolide-co-ε-caprolactone) block copolymers – evaluation as drug carriers for a localized and sustained delivery system

2015 ◽  
Vol 3 (41) ◽  
pp. 8143-8153 ◽  
Author(s):  
Ji Hoon Park ◽  
Hwi Ju Kang ◽  
Doo Yeon Kwon ◽  
Bo Keun Lee ◽  
Bong Lee ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Lactic Acid ◽  
Drug Delivery Systems ◽  
Glycolic Acid ◽  
Drug Carrier ◽  
Drug Carriers ◽  
Poly Lactic Acid ◽  
Sustained Delivery ◽  
System P ◽  
Biodegradable Poly

To develop an appropriate drug carrier for drug delivery systems, we prepared random poly(lactide-co-glycolide-co-ε-caprolactone) (PLGC) copolymers in comparison to commercial poly(lactic acid-co-glycolic acid) (PLGA) grades.

scholarly journals Biodegradable poly (lactic acid-co-glycolic acid) scaffolds as carriers for genetically-modified fibroblasts

PLoS ONE ◽  
2017 ◽  
Vol 12 (4) ◽  
pp. e0174860 ◽  
Author(s):  
Tatjana Perisic ◽  
Ziyang Zhang ◽  
Peter Foehr ◽  
Ursula Hopfner ◽  
Kathrin Klutz ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Glycolic Acid ◽  
Genetically Modified ◽  
Poly Lactic Acid ◽  
Biodegradable Poly

Biodegradable poly(lactic acid)/hydroxyl apatite 3D porous scaffolds using high-pressure molding and salt leaching

2013 ◽  
Vol 49 (4) ◽  
pp. 1648-1658 ◽  
Author(s):  
Jin Zhang ◽  
Hua-Mo Yin ◽  
Benjamin S. Hsiao ◽  
Gan-Ji Zhong ◽  
Zhong-Ming Li
Keyword(s):  
High Pressure ◽  
Lactic Acid ◽  
Poly Lactic Acid ◽  
Porous Scaffolds ◽  
Salt Leaching ◽  
Biodegradable Poly ◽  
Hydroxyl Apatite

scholarly journals Mechanical Properties and Bioactivity of Poly(Lactic Acid) Composites Containing Poly(Glycolic Acid) Fiber and Hydroxyapatite Particles

Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 249
Author(s):  
Han-Seung Ko ◽  
Sangwoon Lee ◽  
Doyoung Lee ◽  
Jae Young Jho
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Flexural Strength ◽  
Interfacial Adhesion ◽  
Glycolic Acid ◽  
Compact Bone ◽  
Poly Lactic Acid ◽  
Coupling Reactions ◽  
The Poor ◽  
Human Compact Bone

To enhance the mechanical strength and bioactivity of poly(lactic acid) (PLA) to the level that can be used as a material for spinal implants, poly(glycolic acid) (PGA) fibers and hydroxyapatite (HA) were introduced as fillers to PLA composites. To improve the poor interface between HA and PLA, HA was grafted by PLA to form HA-g-PLA through coupling reactions, and mixed with PLA. The size of the HA particles in the PLA matrix was observed to be reduced from several micrometers to sub-micrometer by grafting PLA onto HA. The tensile and flexural strength of PLA/HA-g-PLA composites were increased compared with those of PLA/HA, apparently due to the better dispersion of HA and stronger interfacial adhesion between the HA and PLA matrix. We also examined the effects of the length and frequency of grafted PLA chains on the tensile strength of the composites. By the addition of unidirectionally aligned PGA fibers, the flexural strength of the composites was greatly improved to a level comparable with human compact bone. In the bioactivity tests, the growth of apatite on the surface was fastest and most uniform in the PLA/PGA fiber/HA-g-PLA composite.

Antifungal and plasticization effects of carvacrol in biodegradable poly(lactic acid) and poly(butylene adipate terephthalate) blend films for bakery packaging

LWT ◽  
2021 ◽  
pp. 112356
Author(s):  
Phatthranit Klinmalai ◽  
Atcharawan Srisa ◽  
Yeyen Laorenza ◽  
Wattinee Katekhong ◽  
Nathdanai Harnkarnsujarit
Keyword(s):  
Lactic Acid ◽  
Poly Lactic Acid ◽  
Blend Films ◽  
Biodegradable Poly

scholarly journals Effect of High Pressure Treatment on Poly(lactic acid)/Nano–TiO2 Composite Films

Molecules ◽  
2018 ◽  
Vol 23 (10) ◽  
pp. 2621 ◽  
Author(s):  
Hai Chi ◽  
Wenhui Li ◽  
Chunli Fan ◽  
Cheng Zhang ◽  
Lin Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Pressure ◽  
Lactic Acid ◽  
Composite Film ◽  
Composite Films ◽  
Barrier Properties ◽  
Poly Lactic Acid ◽  
Pressure Treatment ◽  
Nano Tio2 ◽  
High Pressure Treatment

The microstructure, thermal properties, mechanical properties and oxygen and water vapor barrier properties of a poly(lactic acid) (PLA)/nano-TiO2 composite film before and after high pressure treatment were studied. Structural analysis showed that the functional group structure of the high pressure treated composite film did not change. It was found that the high pressure treatment did not form new chemical bonds between the nanoparticles and the PLA. The micro-section of the composite film after high pressure treatment became very rough, and the structure was depressed. Through the analysis of thermal and mechanical properties, high pressure treatment can not only increase the strength and stiffness of the composite film, but also increase the crystallinity of the composite film. Through the analysis of barrier properties, it is found that the barrier properties of composite films after high pressure treatment were been improved by the applied high pressure treatment.

DGEBA-Based Epoxy Resin as Compatibilizer for Biodegradable Poly (lactic acid)/Poly(butylene adipate-co-terephthalate) Blends

2018 ◽  
Vol 381 (1) ◽  
pp. 1800133 ◽  
Author(s):  
Elaine C. Lopes Pereira ◽  
Bluma G. Soares ◽  
Rayan B. Jesus ◽  
Alex S. Sirqueira
Keyword(s):  
Lactic Acid ◽  
Epoxy Resin ◽  
Poly Lactic Acid ◽  
Biodegradable Poly
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