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Significantly Improved Stereocomplexation Ability in Cyclic Block Copolymers
Stereocomplex crystallization in cyclic polymer blend and cyclic block copolymers was investigated by means of dynamic Monte Carlo simulations. Five...
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Enhancement of crystallization and adjustment properties for biocompatible poly(lactide)-based thermoplastic polyurethane via stereocomplexation
A novel biocompatible poly(lactide)-based thermoplastic polyurethane based on poly(lactide)- b -poly(hexylene succinate)- b -poly(lactide) triblock...
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Enhanced mechanical and oxygen barrier performance in biodegradable polyurethanes by incorporating cellulose nanocrystals with interfacial polylactide stereocomplexation
AbstractUsing bio-derived cellulose nanocrystals (CNCs) to reinforce the mechanical properties of biodegradable polyurethanes (PUs) is a promising...
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Impact of Annealing on the Melt Recrystallization of a-PDLA/α-PLLA Double-layered Films
Poly(lactic acid) (PLA) as a bio-based polymer with biodegradability and biocompatibility has attracted much attention. To manipulate its properties...
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Influence of Interfacial Enantiomeric Grafting on Melt Rheology and Crystallization of Polylactide/Cellulose Nanocrystals Composites
Incorporating the surface-grafted cellulose nanocrystals (CNCs) with enantiomeric polylactide (PLLA or PDLA) is an effective and sustainable way to...
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Phase transitions in mixtures based on poly(lactic acid) and two polymeric nucleants processed under a fast or slow cooling from the melt
Mixtures based on two different poly(lactic acid)s (PLA) matrices and two distinct nucleating agents, incorporated at several contents, were prepared...
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Exclusive formation of stereocomplex crystallites in PLLA/PDLA (50/50) blends by the addition of a plasticizer
This study examined the effects of loading amounts of a biobased plasticizer, namely, organic acid monoglyceride (OMG), on the formation of...
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Preparation of stereocomplex powder from polycondensation poly(L-lactic acid) and poly(D-lactic acid) for use as a nucleating agent of high-molecular-weight poly(L-lactide)
High-molecular-weight poly(L-lactide) (HMW-PLLA), which is a biocompatible, biodegradable, and bio-based polymer, is an alternative to traditional...
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Stereocomplexed Microparticles as Quercetin Carriers for Improving Plant Growth During Salinity Stress
Stereocomplexed nano- and microparticles composed of a mixture of enantiomeric polylactides (PDLA and PLLA) are often used in biomedical...
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Decomposition Behavior of Stereocomplex PLA Melt-Blown Fine Fiber Mats in Water and in Compost
This study introduces systematic and comparative investigations of various PLA fine fiber mats prepared by melt blowing. A series of PLLA and PDLA...
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A Facile Strategy to Enhance the Formation of Stereocomplex Crystallites in Poly(L-lactic acid)/Poly(D-lactic acid) Blend with High Molecular Weights
Blending of poly(levorotatory-lactic acid) (PLLA) and poly(dextrorotatory-lactic acid) (PDLA) produces the stereocomplex crystallites (PLA SC), which...
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Improvement of physical and mechanical properties of electrospun poly(lactic acid) nanofibrous structures
AbstractThe electrospinning of stereocomplexed poly(lactic acid) (Sc-PLA) twisted yarns was our approach to produce PLA-based nanofibrous structures...
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Mixing of Racemic Poly(L-lactide)/Poly(D-lactide) Blend with Miscible Poly(D,L-lactide): Toward All Stereocomplex-type Polylactide with Strikingly Enhanced SC Crystallizability
Stereocomplex-type polylactide (SC-PLA) consisting of alternatively arranged poly(L-lactide) (PLLA) and poly(D-lactide) (PDLA) chains has gained a...
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Flexible and high heat-resistant stereocomplex PLLA-PEG-PLLA/PDLA blends prepared by melt process: effect of chain extension
Stereocomplex polylactides (scPLAs) are high-performance biodegradable bioplastics because they show better mechanical properties and heat-resistance...
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Fractionated Crystallization Kinetics and Polymorphic Homocrystalline Structure of Poly(L-lactic acid)/Poly(D-lactic acid) Blends: Effect of Blend Ratio
Stereocomplex (SC) crystallization has been an effective way to improve the physical performances of stereoregular polymers. However, the competition...
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Recent advances in enantioselective ring-opening polymerization and copolymerization
Precisely controlling macromolecular stereochemistry and sequences is a powerful strategy for manipulating polymer properties. Controlled synthetic...
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Thermal and mechanical properties of stereocomplex polylactide enhanced by nanosilica
Stereocomplexable polylactide (sc-PLA) with improved thermomechanical performance had been prepared by melt compounding of poly(L-lactide) (PLLA),...
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Stereocomplexation and mechanical properties of polylactide-b-poly(propylene glycol)-b-polylactide blend films: Effects of polylactide block length and blend ratio
In the present work, poly(propylene glycol) (PPG) was block copolymerized to form polylactide-poly(propylene glycol)-polylactide (PL-PPG-PL) triblock...
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Bioactive peptide-bearing polylactic acid fibers as a model of the brain tumor-stimulating microenvironment
Malignant glioblastoma multiforme (GBM), with an aggressive growth pattern and unpredictable tumor location within the brain, causes a deadly disease...
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Structure and properties of flax vs. lyocell fiber-reinforced polylactide stereocomplex composites
A commonly used natural cellulose fiber (flax) and a regenerated cellulose fiber (Lyocell) were used at 20 wt% to reinforce polylactide stereocomplex...
