Results 91 to 100 of about 31,941 (245)

Comparison of the structure and thermal properties of a poly(aryl ether ketone ether ketone naphthyl ketone) with those of poly(aryl ether ketone ether ketone ketone)

e-Polymers, 2007
Abstract Poly(oxy-1,4-phenylene carbonyl-1,4-phenylene oxy-1,4-phenylene carbonyl-2,6-naphthalene carbonyl-1,4-phenylene) or 2,6-PEKEKNK is a polymer of the poly(aryl ether ketone) family differing from PEKEKK by the presence of a naphthyl group linked at positions 2 and 6 to the two ketone groups.
Dosière, Marcel, Villers, Didier, Zolotukhin, M. G., Koch, Michel   +3 more
openaire   +1 more source

Flavour Ester Synthesis by Immobilized Lipases: A Research Overview With Industrial Relevance

Flavour and Fragrance Journal, EarlyView.
Research landscape of flavour ester synthesis by immobilized lipases, highlighting enzymatic routes, major research themes and aspects related to industrial relevance, including enzyme reuse, solvent‐free systems, process intensification and scale‐up potential.
Nicole Marasca, Francisco Lucas Chaves Almeida, Rebeca Luana Carneiro, Marcus Bruno Soares Forte   +3 more
wiley   +1 more source

Tribology of natural Poly-Ether-Ether-Ketone (PEEK) under transmission oil lubrication

Polímeros
High performance polymeric materials such as poly-ether-ether-ketone (PEEK) are increasingly being used for challenging tribological applications in order to replace metal parts in vehicle engines and transmissions.
Thiago Fontoura de Andrade, Helio Wiebeck, Amilton Sinatora   +2 more
doaj   +1 more source

Review on Modification of Sulfonated Poly (-ether-ether-ketone) Membranes Used as Proton Exchange Membranes

Medžiagotyra, 2015
The proton exchange membrane fuel cell (PEMFC) is a type of modern power, but the traditional proton exchange membranes (PEM) of PEMFC are limited by high methanol permeability and water uptake.
Xiaomin GAO, Yonghua LIU, Jinlong LI
doaj   +1 more source

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 more
wiley   +1 more source

A Primary Study into Graphene/Polyether Ether Ketone (PEEK) Nanocomposite for Laser Sintering [PDF]

, 2017
This is the author accepted manuscript. The final version is available from Elsevier via the DOI in this record.This paper proposes two methods of preparation of graphene/PEEK powders for Laser Sintering (LS) and investigates their behaviour in relation ...
Berretta, S, Chen, B, Evans, K, Ghita, O, Smith, K   +4 more
core   +1 more source

Advanced Functional Materials for Marine Energy Utilization

Interdisciplinary Materials, EarlyView.
Marine renewable energy is an important future clean energy supply. We construct and sort out the material system for marine energy capture and conversion, transmission, storage, and utilization for the first time. ABSTRACT Several features of marine energy, including large reserves, sustainable utilization, environmental friendliness, make it a ...
Qiang Yu, Peipei Ge, Fazhou Wang, Shichao Bi, Bo Tang, Ion Tiginyanu, Kenneth I. Ozoemena, Xiao‐Yu Yang   +7 more
wiley   +1 more source

Aliphatic Poly(Carbonate)s with Acid Responsive Release Mechanisms for Micellar Anti‐Tumor Drug Delivery

Macromolecular Rapid Communications, EarlyView.
Micellar systems based on biodegradable aliphatic polycarbonates and acid‐responsive triggers enhance drug solubility, stability, and tumor‐selective release. This review covers micelles with acid‐cleavable drug linkages and those that disassemble via acid‐sensitive functionalities.
Adrian V. Hauck, Lutz Nuhn
wiley   +1 more source

Enhancement of Hybrid SPEEK Based Polymer–Cyclodextrin-Silica Inorganic Membrane for Direct Methanol Fuel Cell Application [PDF]

, 2017
Direct methanol fuel cell (DMFC) is one of several types of fuel cells that use proton exchange membrane (PEM) as a liaison between the reaction at the cathode and anode.
Hadiyanto, H. (H), Hakim, M. F. (Muhammad), Kusworo, T. D. (Tutuk)   +2 more
core   +1 more source

Diverse reactivity of maleimides in polymer science and beyond

Polymer International, Volume 74, Issue 4, Page 296-306, April 2025.
This mini‐review provides a thorough overview of maleimide chemistry, highlighting its diverse reactivity in polymer and materials science applications. Abstract Maleimides are remarkably versatile functional groups, capable of participating in homo‐ and copolymerizations, Diels–Alder and (photo)cycloadditions, Michael additions, and other reactions ...
Bruce E Kirkpatrick, Kristi S Anseth, Tayler S Hebner   +2 more
wiley   +1 more source