Examples of 'l-lactide' in a sentence
Meaning of "l-lactide"
'L-lactide' is a compound used in the production of biodegradable plastics and polymers
How to use "l-lactide" in a sentence
Basic
Advanced
l-lactide
L-lactide is purified by crystallization from toluene solution.
The ring opening polymerization of L-Lactide was performed in toluene.
L-lactide of high purity in high yield is obtained.
The ring opening polymerization of L-Lactide was performed in bulk.
L-lactide and D-lactide are also referred to as dextrorotatory and levorotatory lactide.
Improved process for the preparation of l-lactide of high chemical yield and optical purity.
L-lactide is used alone or in combination with a small amount of the DI racemer.
Such a stent is preferably comprised of a biodegradable copolymer of L-lactide and e-caprolactone.
Finally, surplus L-lactide was volatilized and a composition was discharged from the reactor.
A material according to any preceding claim characterised in that monomer b comprises L-lactide.
A particularly preferred copolymer includes residues of both L-lactide residue and D-lactide residue as comonomers.
The method of the invention can be used for obtaining both D-lactide and L-lactide.
Various different ratios of L-lactide to glycolide monomer can be prepared as PLGA.
Suitable catalysts are the same as for the polymerization of L-lactide in the melt.
A mixture of D - or L-lactide with a lactide having opposite optical activity is preferred.
See also
The time to degrade will also depend on whether racemic lactide or L-lactide is used.
The relative proportion of L-lactide and D-lactide determines the optical purity of the base PLA.
Additional samples were made by polymerizing mixtures with known weights of L-lactide and meso-lactide.
The ring opening polymerization of L-Lactide was performed in bulk for 30 minutes.
The concentration of these additional monomers can be the same as those disclosed for L-lactide.
For at least some applications, L-lactide is most preferred.
A particularly suitable polymer matrix comprises poly-D, L-lactide.
Preferably, the lactide used is L-lactide or meso-lactide or a mixture thereof.
A controlled release pharmaceutical formulation according to Claim 1, wherein the biodegradable polymer is poly-D, L-lactide.
In addition, by making an e-caprolactone and L-lactide based PU the biocompatibility may be improved.
This applies analogously to the racemization of D-lactide to meso - and L-lactide.
Finally, excess of L-lactide was removed by volatilization, and a composition was discharged from the reactor.
The present invention is directed to a flow process for making L-lactide from aqueous L-lactic acid.
Experimental Materials L-lactide and e-caprolactone were obtained from Hycail bv.
The thermoplastic material may be comprised of trimethylene carbonate, L-Lactide and D-Lactide, and polyglycolide.
Poly-L-lactide contains an L-lactide unit as the major component.
In another embodiment, the microspheres are prepared from a copolymer of DL-lactide or L-lactide and caprolactone.
The meso - BD, L-lactide can also be separated form the racemic - D, L-lactide by recrystallization.
The diblock copolymer only contains the L-lactide stereoisomer in the poly ( L-lactide ) block.
The D-lactate-rich PLA used in the blend includes a minor amount of L-lactide.
Copolymerization of glycolide with I, L-lactide and other lactones " in Makromol.
A lactic acid polymer is prepared by polymerization of D, L-lactide.
The fraction comprising predominantly L-lactide is removed as side draw 120.
A pharmaceutical formulation according to Claim 10, wherein the polymer matrix comprises poly-D, L-lactide.
Racemization converts L-lactic acid units in the L-lactide to D-lactic acid units.
In the semi-crystalline polymers the lactide may be D-lactide, or L-lactide.
The proportions of trimethylene carbonate, L-Lactide, D, L-Lactide and polyglycolide may vary.
The activated plates were placed in a glass ampule and 2.9 grams of crystalline D, L-lactide m . p.
An alternate preferred material is the copolymer of L-lactide and . e . - caprolactone as described in U. S.
Example 2 PLLA was prepared by melt polymerization of L-lactide Puralact.
The adjustment of glass-transition temperature of epsilon-caprolactone/D, L-lactide copolymer and hydrolysis behaviour.
A preferred hydrophobic moiety is of polyD, L-lactide ( PDLLA ).
Preparation of an e-caprolactone-d, l-lactide Random Copolymer.
The first monomer is L-lactide.
