Results 31 to 40 of about 2,892,281 (231)

Crystallinity and perfection in ethylene vitrimers probed by combined calorimetry, scattering, and time-domain NMR

open access: yesFrontiers in Soft Matter, 2023
The kinetics of crystallization and crystal-crystal transformations in ethylene vitrimers are studied by time-domain NMR. These vitrimers previously exhibited polymorphic transition of crystal structures, which are shown here to be distinguishable by NMR
Kay Saalwächter   +4 more
doaj   +1 more source

Surface‐Enforced Alignment of Reprogrammable Liquid Crystalline Elastomers

open access: yesAdvanced Science, 2022
Liquid crystalline elastomers (LCEs) are stimuli‐responsive materials capable of undergoing large deformations. The thermomechanical response of LCEs is attributable to the coupling of polymer network properties and disruption of order between liquid ...
Tayler S. Hebner   +4 more
doaj   +1 more source

Synthesis and Characterization of Covalent Adaptable Networks Comprised of Dynamic Imine and Aminal Covalent Bonds [PDF]

open access: yes, 2018
The dissertation is about the design, synthesis and characterization of materials comprised of covalent adaptable networks (CANs). There are three chapters within this dissertation.
Chao, Albert
core   +1 more source

Recent progress in bio-based elastomers with intrinsic self-healing mechanisms - part I: Natural rubber modifications

open access: yesJournal of Saudi Chemical Society, 2023
This review is focused on recent achievements in bio-based self-healable elastomeric materials with special regard to elastomers made of natural rubber (NR) and its modified forms, including epoxidized natural rubber (ENR), oxidized natural rubber (oNR ...
Olga Olejnik, Anna Masek
doaj   +1 more source

Research progress in resin based on dynamic covalent chemistry and its composites

open access: yesCailiao gongcheng, 2020
Resin matrix composites have been widely used in aviation, aerospace and other important frontiers. The application proportion of composites has become an important criterion to measure equipment advancement.
GAO Liang   +4 more
doaj   +1 more source

Analysis of covalent adaptable networks Based on disulfide exchange through broadband dielectric spectroscopy

open access: yesPolymer Testing
To study the nature and the cooperativity of the disulfide exchange mechanism in covalent adaptable networks, the dielectric and conductive properties of three membranes obtained by curing diglycidyl ether of bisphenol A (DGEBA) with hexamethylenediamine
B. Pascual-Jose   +4 more
doaj   +1 more source

A molecular dynamics study of bond exchange reactions in covalent adaptable networks

open access: yes, 2015
Covalent adaptable networks are polymers that can alter the arrangement of network connections by bond exchange reactions where an active unit attaches to an existing bond then kicks off its pre-existing peer to form a new bond.
Yang H   +7 more
core   +1 more source

Key Interaction Networks: Identifying Evolutionarily Conserved Non-Covalent Interaction Networks Across Protein Families [PDF]

open access: yes, 2023
Protein structure (and thus function) is dictated by non-covalent interaction networks. These can be highly evolutionarily conserved across protein families, the members of which can diverge in sequence and evolutionary history.
Shina Caroline Lynn, Kamerlin   +3 more
core   +2 more sources

New Self-Healing Dielectric for High-Reliability, High-Performance PCB-Embedding Materials for Power Electronics Applications

open access: yesIEEE Access, 2023
Printed Circuit Board (PCB)-embedded power electronics packages are anticipated as the next major packaging trend to support efficient and reliable electrical energy conversions. With many core aspects of the package being modified, the dielectric is now
Baptiste Arati   +3 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

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