Materiales avanzados

 

Materiales avanzados

Poly(Lactic Acid): Recent Stereochemical Advances and New Materials Engineering
17/11/2024 - Poly(lactic acid) (PLA) is a representative biobased and biodegradable polyester among sustainable materials. This review covers the basic structural variety of PLA, current states of...
Study on the Properties and Mechanism of m?FACs/f?Fe3O4/Epoxy Wear?Resistant Magnetic Coating
14/11/2024 - In the present study, metal?residue?free PLA with high degree of regularity were synthesized by combining a novel phosphonitrile?based catalyst, HTGCP, with (thio)urea under mild reaction conditions...
Synthesis and evaluation of self?healing polyvinyl alcohol?tannic acid membranes for skin bio?applications
02/11/2024 - New concepts for developing biodegradable mesh implants for prolapse repair.AbstractPelvic organ prolapse (POP) arises from insufficient support of female pelvic organs. Synthetic implants used in...
Tailored and sustainable bio-composite thanks to synergetic interactions of polycaprolactone (PCL) and guar gum derivative
26/10/2024 - Abstract In this research study, we describe the synthesis of new and tailored bio-composite materials by leveraging the synergistic interaction between polycaprolactone (PCL)...
Waterborne novolac epoxy?based thermal resistant and fire?retardant thermal insulation coatings
16/10/2024 - The monomers ??valerolactone (??VL) and ??caprolactone (??CL) can be effectively polymerized into high molecular weight polyesters with a low dispersion index through ring?opening polymerization...
Melt?functionalization of cellulose nanocrystals using dynamic hindered ureas
15/10/2024 - Cellulose nanocrystal (CNC)?reinforced composites are gaining commercial attention on account of their high strength and sustainable sourcing. Grafting polymers to the CNCs in these composites has...
Asymmetric Kinetic Resolution Polymerization of Racemic Lactide Mediated by Axial?Chiral Thiourea/Phosphazene Binary Organocatalyst
05/09/2024 - The simple and effective binary organocatalytic pairs, associating axial?chiral thiourea organocatalysts and phosphazene bases, allow for both high polymerization activity and moderate...
Synthesis and Application of Robust Spiro [Fluorene?9] CAAC Ruthenium Alkylidene Complexes for the „One?Pot“ Conversion of Allyl Acetate to Butane?1,4?diol
12/06/2024 - A series of a novel CAAC ligands featuring a spiro?fluorene group have been synthesized and complexed with ruthenium alkylidenes, yielding the corresponding Hoveyda?type derivatives as a new family...
Improving microinjection processability of biodegradable elastomer poly(l?lactide?co???caprolactone) by blending with polycaprolactone and plasticizing with polyethylene glycol
07/06/2024 - To improve the flexibility, processability, and decomposability of isosorbide (ISB) based polycarbonate, ethoxylated isosorbide (EI5) was used as a comonomer in the synthesis process. Structures and...
Development and characterization of groundnut shell?derived biocarbon?reinforced polylactic acid composite filaments for FDM
17/05/2024 - Waste banana pseudostem was used to prepare BCNA?DcoM, which exhibits pH?responsive switchable wettability with a response time of 3?s and three?dimensional porous structure. It shows 98% separation...
Effect of hydroxyapatite and pulsed electromagnetic field on osteogenic differentiation of human stem cells seeded onto 3D?printed polycaprolactone scaffolds for future bone graft transplantation
11/04/2024 - Bone graft transplantation is a risky procedure mainly due to postoperative complications. Tissue engineering is an alternative to regenerating bone tissue by seeding mesenchymal stem cells into 3D...
Polylactic acid/epoxidized linseed oil/polypropylene grafted maleic anhydride: A promising combination of toughness and rigidity
09/04/2024 - Hybrid polymeric materials with outstanding microwave absorbing properties were prepared by in situ polymerization of aniline in the presence of EVA/CNT/GNP suspension.AbstractMicrowave?absorbing...
Mechanistic Insights into the Effects of Ureas and Monomers on the Ring-Opening Alternating Copolymerization of Epoxides and Anhydrides Catalyzed by Organic Base/Urea
03/04/2024 - Aliphatic polyester is an important polyester material with good biocompatibility and degradability, which can be synthesized through ring-opening alternating copolymerization (ROAC) of epoxides and...
A New Lotus-Leaf-Inspired Beaded Nanofiber Strategy for the Development of Cryogel/Nanofiber Hybrid Structures
05/03/2024 - In this study, a cryogel/nanofiber hybrid material was developed using a new lotus-leaf-inspired strategy. The lotus effect was generated via beaded poly(?-caprolactone) (PCL) nanofibers...
Orthogonal synthesis and modification of hyperbranched polymers via different colors of light
21/02/2024 - A versatile and straightforward approach for the synthesis of functional hyperbranched polymers with tunable properties is represented utilizing a chromatic orthogonal protocol. The method involves...
A review on polylactic acid?based blends/composites and the role of compatibilizers in biomedical engineering applications
21/02/2024 - Different types of bioresorbable PLA compositePoly(lactic acid) (PLA) is one of the most promising biopolymers extensively used in food, packaging, medical and pharmaceutical industries. It is due to...
Green Synthesis of Cation Exchange Membranes: A Review
- Cation exchange membranes (CEMs) play a significant role in the transition to a more sustainable/green society. They are important components for applications such as water electrolysis, artificial...
‘Spider-like’ POSS in NIPU webs: enhanced thermal stability and unique swelling behavior
02/12/2023 - Abstract PEO-based non-isocyanate polyhydroxyurethane (NIPU, PHU) networks physically modified with octa(3-hydroxy-3-methylbutyldimethylsiloxy)POSS (8OHPOSS) were synthesized...
Poly(lactic acid) synthesized from non?food biomass feedstocks with tin?loaded ZA molecular sieve catalysts by direct melt polycondensation
01/12/2023 - A new strategy of the supported method for preparing loaded ZA molecular sieves was developed and employed in the synthesis of poly(lactic acid) (PLA) by melt polycondensation.The design and...
Novel tri-biopolymer thin film with superior antimicrobial efficacy
30/11/2023 - Abstract This work reports a novel synthesis, characterization, and performance of antimicrobial polymeric thin films utilizing unreported ternary blend of Chitosan, PLA, and PCL....
Preparation, stretch?induced crystallization and thermo?oxidative aging behavior of poly (lactic acid)/saponite grafted polystyrene nanocomposites films
20/11/2023 - In this work, modified saponite (SAP?g?PS) was prepared by Pickering emulsion polymerization, and the optimum synthesis conditions of SAP?g?PS were investigated. Furthermore, SAP?g?PS was used as a...