Evaluation of thermal resistance and mechanical properties of injected molded stereocomplex of poly(l-lactic acid) and poly(d-lactic acid) with various molecular weights
Sign Up to like & getrecommendations! Published in 2018 at "Advances in Polymer Technology"
DOI: 10.1002/adv.21824
Abstract: Poly(l-lactic acid) (PLLA) and poly(d-lactic acid) (PDLA) with various molecular weights (MW) were melt blended in equivalent proportions, and then followed by injection molding to form polylactide stereocomplex (sc-PLA). The crystalline structures, thermal resistance, and… read more here.
Keywords: poly lactic; mechanical properties; plla pdla; lactic acid ... See more keywords
The toughening behavior of PLLA and its asymmetric PLLA/PDLA blends with lower optical purity
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DOI: 10.1002/app.44730
Abstract: Linear poly(d-lactide) (PDLA) with various molecular weights is synthesized and incorporated into commercial poly(l-lactide) (PLLA) with different optical purities. And then, the crystallization, mechanical and thermal properties of the PLLA and PLLA/PDLA cast films are… read more here.
Keywords: optical purity; plla pdla; lower optical; plla ... See more keywords
Crystal polymorphism of polylactides and poly(Pro-alt-CO): The metastable beta and gamma phases. Formation of homochiral PLLA phases in the PLLA/PDLA blends
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DOI: 10.1016/j.polymer.2017.03.018
Abstract: Among the various crystalline phases of polylactides, an elusive orthorhombic gamma phase (?PLLA) had been obtained so far only by epitaxial crystallization on hexamethylbenzene. A recent work by J. Shao et al. (Macromolecules, 2013, 46,… read more here.
Keywords: phase; pro alt; poly pro; plla pdla ... See more keywords
Formation of PLA stereocomplex crystals during melt-blending of asymmetric PLLA/PDLA/PMMA blends of varying miscibility
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DOI: 10.1038/s41428-019-0256-6
Abstract: Polylactide (PLA) enantiomers of poly( l -lactide) (PLLA) and poly( d -lactide) (PDLA) were melt-blended with poly(methyl methacrylate) (PMMA) and compression-molded at a temperature between the melting points of PLA homocrystals ( T m,HC )… read more here.
Keywords: formation; plla pdla; plla; pmma ... See more keywords
Synthesis and properties of a temperature-sensitive hydrogel based on physical crosslinking via stereocomplexation of PLLA-PDLA
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DOI: 10.1039/d0ra01790f
Abstract: A synthetic route to amphiphilic conetwork (APCN) gels was developed and involved (1) a ring-opening polymerization (ROP) synthesis of the macromonomer HEMA-PLLA/PDLA, and (2) a radical polymerization of a stereocomplex of the synthesized macromonomers with… read more here.
Keywords: synthesis properties; properties temperature; temperature sensitive; plla pdla ... See more keywords
Three-dimensional printed biodegradable poly(l-lactic acid)/(poly(d-lactic acid) scaffold as an intervention of biomedical substitute
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DOI: 10.1080/25740881.2021.1876879
Abstract: ABSTRACT In biomedical application, the fabrication of biodegradable scaffolds using 3D printing technology has vastly increased to accommodate the complex structure of substitutes. In this study, PLLA and PDLA were hot-melt extruded for the 3D… read more here.
Keywords: three dimensional; poly lactic; plla pdla; lactic acid ... See more keywords
Competitive Stereocomplexation and Homocrystallization Behaviors in the Poly(lactide) Blends of PLLA and PDLA-PEG-PDLA with Controlled Block Length
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DOI: 10.3390/polym9030107
Abstract: Stereocomplex poly(lactide) (PLA) was obtained by solution blending of linear PLLA and PDLA-PEG-PDLA. Effects of the L/D ratios, PEG block, and PDLA block on stereocomplexation of the blends are systemically discussed. The full stereocomplex PLA… read more here.
Keywords: block; pdla peg; plla pdla; peg pdla ... See more keywords