Results 41 to 50 of about 31,185 (305)

Thermoplastic polyurethane/(organically modified montmorillonite) nanocomposites produced by in situ polymerization

open access: yeseXPRESS Polymer Letters, 2012
A series of polyurethane nanocomposites were synthesized from thermoplastic polyurethanes (with different hard segment ratios) and two types of organically modified montmorillonites (OMMT) – Cloisite® 10A and Cloisite® 20A.
M. Strankowski   +5 more
doaj   +1 more source

Envisioning a BHET Economy: Adding Value to PET Waste

open access: yesSustainable Chemistry, 2023
Poly(ethylene terephthalate), the fifth most produced polymer, generates significant waste annually. This increased waste production has spurred interest in chemical and mechanical pathways for recycling.
Clarissa C. Westover, Timothy E. Long
doaj   +1 more source

Nonflammable organic adhesives effective over wide temperature range [PDF]

open access: yes, 1970
Series of highly fluorinated polyurethanes have been prepared as basis for development of nonflammable structural adhesives for use over wide temperature range. Backbone of polyurethanes is polyether of perfluoropropylene oxide.
Mc Leod, A.
core   +1 more source

A 3D printed drug delivery implant formed from a dynamic supramolecular polyurethane formulation [PDF]

open access: yes, 2020
Using a novel molecular design approach, we have prepared a thermo-responsive supramolecular polyurethane as a matrix material for use in drug eluting implants.
Clark, E. A.   +10 more
core   +2 more sources

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

Occupational exposure to selected isocyanates in Polish industry

open access: yesMedycyna Pracy, 2015
Background: Isocyanates constitute a group of highly reactive, low molecular weight chemicals used worldwide for polyurethane manufacturing. The occupational exposure to these compounds is a major cause of occupational asthma, thus it is very important ...
Sławomir Brzeźnicki   +1 more
doaj   +1 more source

Magnetic properties of materials for MR engineering, micro-MR and beyond

open access: yes, 2014
We present the results of a systematic measurement of the magnetic susceptibility of small material samples in a 9.4 T MRI scanner. We measured many of the most widely used materials in MR engineering and MR micro technology, including various polymers ...
Dragonu, Iulius   +5 more
core   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Mechanoresponsive Elastomers Made with Excimer-Forming Telechelics

open access: yesOrganic Materials, 2020
Mechanoresponsive luminescent (MRL) elastomers, which change their fluorescence color or intensity upon deformation, can facilitate simple strain detection through optical signals.
Derek J. Kiebala   +5 more
doaj   +1 more source

Non-flammable elastomeric fiber from a fluorinated elastomer and containing an halogenated flame retardant [PDF]

open access: yes, 1976
Flame retardant elastomeric compositions are described comprised of either spandex type polyurethane having incorporated into the polymer chain halogen containing polyols, conventional spandex type polyurethanes in physical admixture with flame retardant
Howarth, J. T.   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy