- - polylactic acid (PLLA) product description
- -PLLA
L- P olylactide
CAS No 33135-50-1
Poly(L-lactide)
Poly（ L-lactic acid ）
- -polylactide
(C6H8O4)n
L Polylactic acid
poly l lactic acid chemistry
Quality indicators
Intrinsic viscosity 0.3-5dl/g
Viscosity average molecular weight 1-100w
Glass transition temperature 60-65 ℃
Melting point 175-185 ℃
Density 1.20-1.30g/cm3
Chinese name poly (L-Lactide), poly (L-lactic acid), L- polylactic acid
English names Poly(L-lactide), Poly(L-lactic acid), L-polylactide
White or yellow granules in appearance
Chemical formula (C6H8O4)n
CAS login number 33135-50-1
poly(lactic-co-glycolic acid) structure / plla chemical structure :
poly-l-lactic acid an overview / what is poly-l-lactic acid
properties of poly lactic acid Product characteristics and application: The product made of poly L-lactide has good biocompatibility. poly-l-lactic acid benefits , After degradation in vivo, the product is metabolized and eliminated in vitro, which has no harmful and toxic effects on the human body. use of poly-l-lactic acid : Therefore, it is widely used in the medical field, such as disposable infusion utensils and non-disassembly surgical sutures; Drug controlled release and sustained release packaging agent; Tissue engineering scaffolds, bone fixation and bone repair materials, microcapsules for injection, microspheres, implants, animal organ support elastomers and other materials as plla filler , plla mask , plla cream , poly-l-lactic acid cream , injectable poly-l-lactic acid . poly-l-lactic acid cream , poly-l-lactic acid serum
Research on the application of PLLA in medical fields has become the most popular, including: drug slow release system, orthopedic internal fixation, medical sutures, tissue engineering, facial fillers, absorbable heart stents, etc.
hydrophilicity of poly(l-lactide) / poly(l-lactide) solubility :Insoluble in water, acetone, Slightly soluble in chloroform; poly(d l-lactide) solubility
plla allergy :
plla degradation time : L-polylactic acid PLLA/ L-lactide is non-toxic, non-irritating, biodegradable, high strength, good plasticity, easy processing and molding, degradation cycle of 2 to 12 months. The degradation period can also be changed according to the addition of different modifiers. L-polylactic acid (PLLA)/L-polyllactide is decomposed by enzymes in vivo and eventually and water, which has good biological compatibility.
Processing technology: injection molding, electrostatic spinning, etc
L Polylactic acid | | |
Items | Index | Test method |
Intrinsic viscosity polyglycolic acid melting point | 0. 3 - 5 .0 dL/g | Ustler viscometer Gas and liquid chromatography Gas and liquid chromatography Colorimetry, ---- |
Viscoaverage molecular weight Numerical average molecular weight | 1-100w (w=10k) 1-100w | Houthi viscosity method GPC (Gel Permeation Chromatography) |
Glass transition temperature | 60-65 ℃ | Differential thermal analysis and differential scanning calorimetry |
Melting point Residual monomer Residual solvent Heavy metal polylactic acid density Sulfate ash | 175-185 ℃ <1% <0.05% <10 ppm 1.20-1.30g/cm 3 <0.05% | Automatic melting point method GC 、 HPLC atomic absorption spectroscopy---- Burn at high temperature and weigh the residue allowance |
Model | Name | Melting index range （ g/10min ） |
PLLA-05 | PLLA | 0.30-0.50 |
PLLA-07 | PLLA | 0.50-0.70 |
PLLA-10 | PLLA | 0.70-1.00 |
PLLA-15 | PLLA | 1.00-1.50 |
PLLA-20 | PLLA | 1.50-2.00 |
PLLA-25 | PLLA | 2.00-2.50 |
PLLA-30 | PLLA | 2.50-3.00 |
PLLA-40 | PLLA | 3.00-4.00 |
PLLA-50 | PLLA | 4.00-5.00 |
PLLA other series | To know more series,pls contact us | |
Storage mode:
■ This series of products are biodegradable materials. During storage, avoid contact with water, acidic substances, alkaline substances, alcohol reagents and other reagents that may cause product degradation.
■ This series of products in the storage process should be sealed, dry and low temperature (refrigerated -20 degrees), sealed by sealing machine (after use, the rest of the products shall not be stored in ziplink bag packaging).
■ When in use, take out of the refrigerator and place at room temperature until the temperature reaches room temperature to wipe the condensed water on the surface of the packaging bag before opening it (take out of the refrigerator and open it without constant temperature, the water in the air will condense to the surface of the product, making the product degrade). The ambient air humidity should be less than 35% to avoid dampness of remaining products and affect product quality.
poly l lactic acid where to buy :
United Kingdom
Pakistan
