Poly-L-lactide PLLA

D. H. Zhang, M. A. Kandadai, J. Cech, S. Roth, S. A. Curran, Poly(L-lactide) (PLLA)/multiwalled carbon nanotube (MWCNT) composite Characterization and biocompatibility evaluation, Journal of Physical Chemistry B, vol. 110, pp. 12910-12915, 2006. 

Y. Li and H. Shimizu, Improvement in toughness of poly(l-lactide) (PLLA) through reactive blending with acrylonitrile-butadiene-styrene copolymer (ABS) Morphology and properties, Eur. Polym. J., 45 (3) 738-746, March 2009. 

Due to the chiral nature of lactic acid, several distinct forms of polylactide exist poly-L-lactide (PLLA) is the product resulting from polymerization of L,L-lactide (also known as L-lactide). PLLA has a crystallinity around 37%, a glass transition... 

According to the reactants, either diblock or triblock copolymers can be obtained. For instance, PEO-fc-PDMS-b-PEO triblock copolymer and PEO-PDMS diblock copolymers were prepared in high yields by hydrosilylation of a telechelic PDMS which exhibits SiH functions (Mn = 1000) with monofunctional allyl-terminated PEO with Mn = 350 and 500 and telechelic diallyl PEO (Mn = 600), respectively [123]. Their dilute solution properties were investigated. Similarly, interesting PS-b-PDMS thermoplastics have been synthesized from a polystyrene fitted at chain end with a vinyl silane function which reacts with a PDMS bearing SiH end-groups [124]. In addition, hydrosilylation has been used to prepare original copolymers from a,co-disilyl-PDMS 25 and either a,oj-diallyl-polysulfone [125] or a,oj-diallyl poly (L-lactide) (PLLA) as follows [126] ... 

Blend films of poly(L-lactide) (PLLA) and poly(vinyl alcohol) (PVA) were synthesized. The component interaction, crystallization behavior, and miscibility of these blends were studied by solid-state NMR. ... 

Many researches have synthesized calcium phosphate / organic molecule composites in general, as experimental evaluation on organic-inorganic interfaces is so difficult and complicated, the detailed interfacial interactions have not been elucidated yet. In this study, we adopted a HAp / poly-L-lactide (PLLA) composite and a HAp / glycine composite as model materials to elucidate the interfacial chemical interactions using ab initio calculation method, i.e. discrete variational (DV)-Xo method. 

Poly(L-lactide) (PLLA) microspheres using chitosan on the surface Bioactivity study on control PLLA and the chitosan-coated PLLA microspheres by in vitro culture Rabbit chondrocytes Larger amount of chitosan-coated PLLA microspheres exhibited enhanced cell attachment and proliferation Chitosan-coated PLLA microspheres may serve as injectable cell microcarriers for chondrogenesis in cartilage tissue Lao et al. [105]... 

Ostwald, J. Dommerich, S. Nischan, C. andKiamp, B. [In vitro culture of cells from respiratory mucosa on foils of coUagen, poly-L-lactide (PLLA) and poly-3-hydroxy-butyrate (PHB)]. Latyngorhinootol. 2003,82(10), 693-699, [Article in Germany]. 

Poly (lactic-co-glycolic acid) (PLGA) and poly (L-lactide) (PLLA)... 

Lactide is the cycUc dimer of lactic acid, which exists as two optical active isomers d and l. L-Lactide is the naturally occurring isomer, while OL-lactide is the synthetic blend of D-lactide and L-lactide. The polymerization of these monomers leads to either a semicrystalline polymer or an amorphous polymer. Poly(L-lactide) (PLLA), for example, is a semicrystaUine polymer with a degree of crystallinity around 37%. It has a glass transition temperature of 60-65 C and a melting temperature of approximately 175 °C. Conversely, poly(DL-lactide) (DLPLA) is an amorphous polymer with random distribution of both isomeric forms of... 

Shikinami, Y. and Okuno, M. (1999) Bioresorbable devices made of forged composites of hydroxyapatite (HA) particles and poly-L-lactide (PLLA) Part I. Basic characteristics. Biomaterials, 20, 859-877. 

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