Search
Now showing items 31-40 of 57
Effect of hydrogen-bond strength on photoresponsive properties of polymer-azobenzene complexes
(NRC Research Press & Canadian Society for Chemistry, 2020-04-16)
Supramolecular complexation between photoresponsive azobenzene chromophores and a photopassive polymer host offers synthetic and design advantages compared with conventional covalent azo-containing polymers. In this context, ...
Selective isotopic labeling resolves the gel-to-fluid phase transitions of the individual leaflets of a planar-supported phospholipid bilayer
(American Chemical Society, 2019-07-05)
Knowledge of the thermotropic phase behavior of solid-supported bilayer lipid assemblies is essential to mimick the molecular organization and lateral fluidity of cell membranes. The gel-to-fluid phase transitions in a ...
Covalently crosslinked mussel byssus protein-based materials with tunable properties
(Wiley, 2018-03-01)
Mussels’ anchoring threads, named byssus, are collagen-rich fibers with outstanding mechanical properties. Our previous work has shown the possibility of producing a byssus protein hydrolyzate with good film-forming ability, ...
Raman spectroscopy of individual poly(ethylene oxide) electrospun fibers : effect of the collector on molecular orientation
(Elsevier, 2016-09-06)
Electrospun fibers are complex polymeric materials with a typical diameter of a few
hundred nanometers that are often frozen in out-of-equilibrium states due to the fast solvent
evaporation and high elongational forces ...
Electrospinning of highly crystalline polymers for strongly oriented fibers
(American Chemical Society, 2020-09-23)
Electrospun nanofibers (NFs) often demonstrate an exponential increase in mechanical and other properties at reduced diameters. Molecular orientation emerges as a key parameter for the performance of amorphous and low ...
Quantifying polymer chain orientation in strong and tough nanofibers with low crystallinity : towards next generation nanostructured superfibers
(American Chemical Society, 2019-04-19)
Advanced fibers revolutionized structural materials in the second half of the 20th century. However, all high-strength fibers developed to date are brittle. Recently, pioneering simultaneous ultrahigh strength and toughness ...
Molecular-level study of photoorientation in hydrogen-bonded azopolymer complexes
(American Chemical Society, 2018-01-25)
To optimize azobenzene-containing materials for applications such as
rewritable waveguides and holographic data storage, it is imperative to understand the effect
of the azobenzene structure on the photoresponse of the ...
Glass versus crystal : a balancing act between competing intermolecular interactions
(American Chemical Society, 2017-04-14)
Hydrogen (H) bonds can be used either for crystal engineering or for designing compounds capable of forming very stable glassy phases. Herein, a second type of directional noncovalent interaction, π–π stacking, is introduced ...
Bridging the gap between the mesoscopic 2D order–order transition and molecular-level reorganization in dot-patterned block copolymer monolayers
(American Chemical Society, 2016-11-21)
Langmuir–Blodgett (LB) films of amphiphilic block copolymers (BCs) form well-defined nanostructures with long-range order useful, for instance, for nanolithography applications. Nanostructures with a 2D circular micelle ...
Eumelanin for nature-inspired UV-absorption enhancement of plastics
(Wiley, 2019-02-06)
In the human body, the black-brown biopigment eumelanin blocks the harmful
ultraviolet (UV) radiation. In the plastics industry, additives are often added to polymers to
increase their UV-absorption properties. We herein ...