Results 31 to 40 of about 5,022 (153)

Beta relaxation in the shear mechanics of equilibrium viscous liquids: Phenomenology and network modeling of the alpha-beta merging region

open access: yes, 2010
The phenomenology of the beta relaxation process in the shear-mechanical response of glass-forming liquids is summarized and compared to that of the dielectric beta process.
Barlow   +47 more
core   +1 more source

Rubbery wound closure adhesives. I. design, synthesis, characterization, and testing of polyisobutylene-based cyanoacrylate homo- and co-networks [PDF]

open access: yes, 2015
Novel rubbery wound closures containing various proportions and molecular weights of polyisobutylene (PIB) and poly(2-octyl cyanoacrylate) [P(OctCA)] for potential clinical use were designed, synthesized, characterized, and tested.
Kennedy, J. P.   +4 more
core   +1 more source

Microheterogeneous Polymeric Solvent Systems

open access: yesLiquids
This paper shows that low concentrations of either a low-molecular-weight or a recyclable polymeric cosolvent can be used to design recyclable, tunable alkane polymeric solvent systems.
Thomas J. Malinski   +6 more
doaj   +1 more source

Fragility and compressibility at the glass transition [PDF]

open access: yes, 2004
Isothermal compressibilities and Brillouin sound velocities from the literature allow to separate the compressibility at the glass transition into a high-frequency vibrational and a low-frequency relaxational part.
A. Wischnewski   +10 more
core   +2 more sources

Complexes of aluminum, iron(III), and gallium(III) chlorides with ethers in synthesis of highly reactive polyisobutylene

open access: yesЖурнал Белорусского государственного университета: Химия, 2020
In this review, the latest achievements in the field of cationic polymerization of isobutylene catalyzed by the complexes of conventional Lewis acids with ethers are presented.
Sergei V. Kostjuk
doaj   +1 more source

Simulation Study of FEUDT Structure Optimization and Sensitive Film Loading of SAW Devices

open access: yesMicromachines, 2022
In order to further improve the degree of frequency response of the surface acoustic wave (SAW) sensor for gas detection, the structure of the forked-finger transducer was analyzed, and its optimal structural parameters were simulated and designed.
Shen Bin   +3 more
doaj   +1 more source

Wet-jet milling exfoliated hexagonal boron nitride as industrial anticorrosive pigment for polymeric coatings

open access: yesJPhys Materials, 2023
The incorporation of inorganic nanofillers into polymeric matrices represents an effective strategy for the development of smart coatings for corrosion protection of metallic substrates.
Miguel Angel Molina-Garcia   +11 more
doaj   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

open access: yesAdvanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti   +8 more
wiley   +1 more source

The Influence of Monofunctional Silanes on the Mechanical and Rheological Properties of Hot Melt Butyl Rubber Sealants

open access: yesApplied Sciences
The influence of organosilicon compounds on butyl sealant blends’ mechanical and processing properties was investigated, particularly under increased humidity conditions.
Jakub Czakaj   +3 more
doaj   +1 more source

Low-temperature dynamics in a dye-doped polymer: correspondence between the data obtained by photon echo and single molecule spectroscopy

open access: yesEPJ Web of Conferences, 2018
Low temperature dynamics (tunneling and vibrational relaxation) in doped polyisobutylene film has been reinvestigated using 2-pulse incoherent photon echo (2IPE) and compared with single-molecule spectroscopy (SMS) data.
Karimullin Kamil, Naumov Andrei
doaj   +1 more source

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