PVC films submitted to ultrasonic irradiation presented structural changes as probed by infrared measurements. These measurements showed some infrared bands alterations attributed to the increase concentration of some conformational isomers of PVC and the presence of some new species in the macromolecular matrix.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/s1350-4177(01)00121-3 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Preparation of manganese-doped carbon quantum dots@halloysite nanotube composites films for advanced UV shielding properties.
Turk J Chem
November 2024
School of Chemical and Blasting Engineering, Anhui University of Science and Technology, Huainan, P.R. China.
The development of ultraviolet (UV) shielding materials is of great importance to protect human health and prevent the degradation of organic matter. However, the synthesis of highly efficient UV shielding polymer nanocomposites is currently limited by the agglomeration of inorganic anti-UV nanoparticles (NPs) within the polymer matrix and the limited absorption spectrum of UV shielding agents. In this study, highly effective manganese doped carbon quantum dots@halloysite nanotube composites (Mn-CDs@HNTs/PAS) were successfully synthesized by loading manganese-doped carbon quantum dots (Mn-CDs) into UV shielding effective halloysite nanotubes (HNTs) via the solvothermal method, followed by polymerization modification (PAS).
View Article and Find Full Text PDFProduction of benzyl-based esters from used soybean cooking oil as renewable plasticizers for flexible PVC films: Exploring new applications for lipases in emerging technologies.
Int J Biol Macromol
December 2024
Graduate Program in Chemistry, Federal University of Alfenas, Alfenas, MG 37130-001, Brazil; Institute of Chemistry, Federal University of Alfenas, Alfenas, MG 37130-001, Brazil. Electronic address:
The objective of this study was to produce new and renewable bio-based plasticizers from used soybean cooking oil (USCO). First, USCO was completely converted into free fatty acids (FFAs) using lipase from Candida rugosa. Next, these FFAs were enzymatically esterified with benzyl alcohol in solvent-free systems.
View Article and Find Full Text PDFPotentiality of chitosan/titanium oxide nanocomposite for removing iron and chromium from hydrous solutions.
Environ Sci Pollut Res Int
December 2024
Department of Soil and Water, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, P.O. Box 68, Cairo, 11241, Egypt.
The present study involved the preparation of a nano-polymer based on shrimp wastes as a biodegradable chitosan nanoparticle (Cs) incorporated into titanium oxide nanoparticles (TiO) in an aqueous medium and carried on the specific polymer to form thin films. The spectroscopic properties of chitosan/TiO/Polymer thin films were estimated by transmission electron microscopy (TEM) and Fourier transform infrared (FTIR) spectroscopy. The fabricated films were then examined for their potential to eliminate iron (Fe) and chromium (Cr) from solutions.
View Article and Find Full Text PDFA green approach to improve antibacterial properties of PVC/PVDF film doped by silver nanoparticles via nanosecond laser ablation for wound healing application.
Sci Rep
November 2024
Spectroscopy Department, Physics Research Institute, National Research Centre, Dokki, 12622, Giza, Egypt.
Nanocomposite films of (30% PVC/70% PVDF) blend containing silver nanoparticles were synthesized via pulsed laser ablation route (PLA). Changes in physical characterization of PVC/PVDF blend before and after the incorporation of AgNPs have been studied. FTIR results confirms the interaction between AgNPs and PVC/PVDF.
View Article and Find Full Text PDFFormulation and Characterization of Deep Eutectic Solvents and Potential Application in Recycling Packaging Laminates.
Polymers (Basel)
September 2024
Materials Innovation Centre, School of Engineering, University of Leicester, Leicester LE1 7RH, UK.
Deep Eutectic Solvents (DESs) show promising abilities for the delamination of multilayer packaging films that are used in food packaging and in pharmaceutical blister packs. Due to the complexity of their structure, the recycling of such materials is a challenging task, leading to the easiest or cheapest disposal option of either landfill or incineration. Towards the development of 'green' solvents for efficient waste management and recycling, this research focuses on the preparation of a range of hydrophobic and hydrophilic DESs based on carboxylic acids in combination with various naturally derived aliphatic and aromatic organic compounds as well as amino acids.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!