Results 101 to 110 of about 18,164 (213)

Biobased Epoxidized Castor Oil Covalent Adaptable Networks Adhesives Reinforced with Recycled Carbon Fibers

Macromolecular Rapid Communications, EarlyView.
It is reported the design of biobased sustainable, smart, and functional adhesives achieved dispersing recycled carbon fibers into biobased epoxy monomer. ABSTRACT The development of sustainable, smart, and functional adhesives is crucial in advancing environmentally friendly materials.
Alberto Cellai, Rafael Turra Alarcon, Bernhard Sölle, Elisabeth Rossegger, Valentina Casalegno, Milena Salvo, Marco Sangermano   +6 more
wiley   +1 more source

Metathesis‐Sourced Epoxides in Ring‐Opening Copolymerization: Selective Access to Degradable Polythioesters

Macromolecular Rapid Communications, EarlyView.
Metathesis‐derived cyclopentene epoxides enable strictly alternating, scrambling‐free ring‐opening copolymerization with phthalic thioanhydride, yielding well‐defined polythioesters with molecular weights up to ∼38 kg/mol. Their performance extends to oxygen‐based anhydrides and selective terpolymerizations. Direct comparisons with all‐oxygen analogues
Niracha Tangyen, Bhargav R. Manjunatha, Valerio D'Elia, Alex J. Plajer   +3 more
wiley   +1 more source

Machine Learning Assisted Prediction of Degradation Behavior of Poly(Lactic‐Co‐Glycolic Acid)

Materials Genome Engineering Advances, EarlyView.
Using a gradient boosting‐based machine learning model trained on 484 data points, this study predicts the degradation behavior of poly(lactic‐co‐glycolic acid) (PLGA) implants. Degradation time, molecular weight, and lactide/glycolide ratio were identified as key governing factors, enabling accurate prediction while reducing reliance on extensive ...
Shuai Wang, Long Chen, Kepeng Yang, Bowen Cheng, Yingpeng Wan, Bingyan Wang, Tao Sun, Xiangping Hao, Jingzhi Yang, Haijun Zhang, Lei Wang, Lu‐Ning Wang   +11 more
wiley   +1 more source

Insights into kinetics and reaction mechanism of acid-catalyzed transesterification synthesis of diethyl oxalate

Resources Chemicals and Materials
The catalytic performance of different acidic catalysts for diethyl oxalate synthesis from the one-step transesterification of dimethyl oxalate and ethanol was evaluated.
Naiwen Zhang, Rui Xia, Siyu Wan, Xinyang Xiong, Jinggang Zhao, Jun Zhou, Lei Shi   +6 more
doaj   +1 more source

Contribution à l'étude de la transestérification de l'acétate de méthyle par distillation réactive [PDF]

, 2006
Le PVA est un polymère non inflammable, non toxique et biodégradable.malheureusement, sa réaction principale de synthèse produit un haut débit de résidu qui à niveau du monde devient plusieurs millions de tonnes annuelles.
Bonet, Jordi
core  

Biodegradable Dual‐Material 4D‐Printed Scaffolds With Tunable PLA/PEG Ratios for Mandibular Bone Regeneration

Polymer Engineering &Science, EarlyView.
Schematic representation of the fabrication and application concept of biodegradable dual‐material 4D‐printed PLA/PEG scaffolds for mandibular bone regeneration. ABSTRACT In this study, biodegradable dual‐material 4D‐printed scaffolds with tunable poly(lactic acid)/poly(ethylene glycol) (PLA/PEG) ratios were designed, fabricated, and systematically ...
Meltem Eryildiz
wiley   +1 more source

Développement d’un système de production du Biodiesel à partir d’Huile utilisée [PDF]

, 2018
L’épuisement de ressources pétrolières, la cherté et la fluctuation quasi-permanente du prix du baril de pétrole, la diversification de sources d’approvisionnement en énergie…, ont amené les chercheurs et les scientifiques à s’intéresser à d’autres ...
Bendiaf, Hadjer
core   +1 more source

Robust β‐myrcene block copolymer elastomeric vitrimers

Polymer International, EarlyView.
Myrcene‐based vitrimeric elastomers were compared: statistical (poly(styrene‐stat‐myrcene‐stat‐AAEMA)] versus ‘hard–soft’ diblock (poly(styrene)‐block‐poly(myrcene‐co‐AAEMA)). The diblock's ability to anchor the glassy poly(styrene) blocks in a self‐assembled microstructure was effective – leading to four times higher tensile stress and ten times ...
Chong Yang Du, Farhad Asempour, Milan Marić   +2 more
wiley   +1 more source

Unsaturated biobased polyesters from bicyclic α‐pinene‐based diols

Polymer International, EarlyView.
We present the synthesis of four biosourced unsaturated polyesters made from chiral terpene‐based diols and esters of renewable diacids. The resulting materials harbor a bicyclic pinene ring in their backbones which leads to enhanced thermal properties while still conferring susceptibility to enzyme hydrolysis for chains having a cis alkene.
Ganapathy Ranjani, Shengwei Sun, Erik Sundén, Diana Bernin, Per‐Olof Syrén   +4 more
wiley   +1 more source

Analyse chimique des graines d’anone [PDF]

, 2017
L’anone (Annona cherimola) est un fruit exotique indigène qui a suscité ces dernières décennies un intérêt croissant en raison de son goût savoureux, sa valeur nutritive et son utilisation dans la médecine traditionnelle.
Belkhodja, Abdelmajid
core   +1 more source