Results 51 to 60 of about 68,403 (306)

MORPHOLOGICAL AND STRUCTURAL INVESTIGATION OF THE POLY(VINYL CHLORIDE) / GRAPHENE OXIDE COMPOSITES

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2020
The morphological and structural properties of the poly(vinyl chloride)/graphene oxide (PVC/GO) composites are reported. By the mixture of the two constituents, the PVC/GO composite membranes with a concentration of the GO sheets varying from 0 wt.% to ...
Luiza STÎNGESCU   +14 more
doaj   +1 more source

The Effect of Cesium Chloride on Thermal Properties of Poly (Vinyl Alcohol) [PDF]

open access: yesEngineering and Technology Journal, 2016
Poly (vinyl alcohol), PVA for short, films doped with different concentrations of cesium chloride(CsCl) (0% , 2% , 4% , 6% , 8% , 10% , 12% , 14% ,16% ) were prepared by solution casting method to study the effect of this salt on thermal properties of ...
Nadia Azeez Betti
doaj   +1 more source

Online monitoring of vinyl chloride polymerization in a microreactor using raman spectroscopy [PDF]

open access: yes, 2012
A novel capillary-based microfluidic device has been designed to follow the vinyl chloride polymerization reaction. The use of a co-flow generation system enabled obtaining monodisperse vinyl chloride droplets within 200 µm in diameter, each one being ...
Bally   +21 more
core   +4 more sources

Living Materials Approach for In Situ Bio‐Polymers Production Using Bacillus Paralicheniformis in Microneedles

open access: yesAdvanced Healthcare Materials, EarlyView.
Dissolvable microneedle (MN) device containing Bacillus paralicheniformis. The polymeric matrix encapsulates and protects the bacteria, preserving their viability while enabling in situ production and release of γ‐polyglutamic acid. The bacteria are delivered into the skin via 500 µm‐long microneedles, and remain detectable on the skin 24 h post ...
Caroline Hali Alperovitz   +3 more
wiley   +1 more source

The Morphology and Performance of Poly(Vinyl Chloride) Containing Melamine Schiff Bases against Ultraviolet Light

open access: yesMolecules, 2019
Five Schiff bases derived from melamine have been used as efficient additives to reduce the process of photodegradation of poly(vinyl chloride) films. The performance of Schiff bases has been investigated using various techniques.
Gamal A. El-Hiti   +7 more
doaj   +1 more source

Polypyrrole Aerogels: Efficient Adsorbents of Cr(VI) Ions from Aqueous Solutions

open access: yesGels, 2023
Three-dimensional and porous polypyrrole (PPy) aerogels were prepared using a facile two-step procedure in which cryogels were synthesized via the cryopolymerization of pyrrole with iron (III) chloride in the presence of supporting water-soluble polymers
Patrycja Bober   +6 more
doaj   +1 more source

Industrial preparation of poly(vinyl chloride). [PDF]

open access: yesEnvironmental Health Perspectives, 1975
Vinyl chloride (VCM) is unloaded from railroad tank cars or tank trucks into pressurized storage spheres. VCM, emulsifiers, and catalysts are metered into polymerization vessels wherein PVC is produced through a chemical reaction in an aqueous medium under controlled conditions of temperature and pressure.
openaire   +2 more sources

Microneedle Technology in Psoriasis Management: Mechanistic Insights, Technological Innovation, Clinical Progress, and Challenges

open access: yesAdvanced Healthcare Materials, EarlyView.
This review explores the evolving role of microneedle systems in psoriasis management, highlighting their potential for enhanced drug delivery, diagnosis, and disease monitoring. It also discusses unmet clinical needs for psoriasis management and technical challenges, while outlining strategic directions to advance microneedle integration into routine ...
Fatma Moawad   +3 more
wiley   +1 more source

Prediction of Zero Shear Viscosity of Poly (Vinyl Chloride) Plastisols

open access: yesApplied Rheology, 2006
The rheological behaviour of PVC plastisols composed of a blend of suspension and micro-suspension resins in different proportions was investigated. The present work was mainly focused on the variation of the zero shear viscosity versus the concentration
Lainé Carole, Cassagnau Philippe
doaj   +1 more source

Potentiometric Detection of Cr3+ Ions in Solution by a Chromium(III) Electrochemical Sensor Based on Diethyl 2-phthalimidomalonate Doped in Polymeric Membrane

open access: yesInternational Journal of Electrochemical Science, 2013
A new poly(vinyl chloride) membrane sensor that is highly selective to Cr3+ ions was prepared by using diethyl 2-phthalimidomalonate (DPM) as a suitable neutral carrier.
Hassan Ali Zamani, Sara Sahebnasagh
doaj   +1 more source

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