Synthesis and characterization of poly(lactic acid) based graft copolymers

Modulation, functionality, and cytocompatibility of three-dimensional printing materials made from chitosan-based polysaccharide composites

“…PLA, a universal polymer, is synthesized from cornstarch and is a biodegradable polymer material. Similar to polystyrene, PLA exhibits good mechanical properties, biodegradability, and biocompatibility [11][12][13]. It is mainly applied to biomedical packaging materials, braces, wound dressings, and sutures [14,15], because it is an environmentally friendly material with positive ecologic and economic effects.…”

Synthesis and characterization of poly (lactic acid)/chitosan nanocomposites based on renewable resources as biobased-material

“…Recently, research on the synthesis of polymers with macromolecular structure that clearly has been much done [5,6]. Polymers with diverse structures, such as block, graft, star, gradient, hyper-branched, and comb, already used to stabilize colloidal, modification of crystal formation and transfer system of sophisticated drugs [7]. The use of polymers that are currently being researched by many scientists that is in the making Bioscaffold composed of natural polymers PLA.…”

“…This is because the price is relatively expensive. In addition, the availability of the PLA is in limited quantities and low molecular weight [7]. PLA with > 90% PLLA tend to form crystals, while the PLA with <90% PLLA tend to be amorphous.…”

Esterification, transesterification and hydrogenation reactions of polyunsaturated compounds catalyzed by a recyclable polymer supported palladium catalyst

“…Esterification of carboxylic acids and transesterification of esters are important reactions having wide industrial applications for the synthesis of fragrances, flavors, polymers, pharmaceutical and agricultural compounds [1,2,3]. In this regard, many useful and reliable catalytic systems for the synthesis of esters [4,5,6,7] and for transesterification reactions [8,9,10,11,12,13] have been reported in the literature.…”

“…[Pd(AAEMA)2 ]in situ generated palladium nanoparticles. The reaction pathway could be similar to the one proposed by Aavula and co-workers[23] starting with an oxidative addition of bromobenzene additive to the coordinately unsaturated palladium(0) at the nanoparticle edge, affording Pd(II)-phenyl bromide intermediate, which in contact with hydrogen gas leads to generation of HBr and Pd(II) phenyl hydride species that, in turn, restores the initial Pd(0) by elimination of benzene (Scheme 2).…”