Results 31 to 40 of about 2,082 (291)
Self-Propelled Micromotors for Naked-Eye Detection of Phenylenediamines Isomers
, 2018 Tubular micromotors composed of a hybrid single-wall carbon nanotube (SW)–Fe2O3 outer layer and powered by a MnO2 catalyst are used for phenylenediamines isomers detection and discrimination.
Roberto María-Hormigos (5469914) +2 more
core +2 more sources
, 2018 The synthesis of N-heterocycles of quinoxalines has been developed by an efficient protocol of one-pot annulation of alkynes with o-phenylenediamines. A variety of quinoxalines were prepared in good to high yields in the presence of catalytic amount of ...
Zhe-Yao Hu (4925218) +5 more
core +1 more source
Illegally additives determination by thin layer chromatography
MATEC Web of Conferences, 2016 To find out a simple TLC method, which could identify m-phenyenediamine and o-phenylenediamine in several colors of oxidation hair coloring products simultaneously. The colors includes black, yellow, brown and red. A small amount of the sample was placed
Liang Xin +3 more
doaj +1 more source
Ring-Alkylated p-Phenylenediamines as Antiozonants
, 1963 As part of a larger program to correlate the antiozonant activity of rubber additives with their chemical structure, we investigated a homologous series of ring-alkylated p-phenylenediamines.
Harold A. Tucker, Alan G. Veith
core +1 more source
Scientific Reports, 2021 Mass spectrometry coupled to low-temperature plasma ionization (LTPI) allows for immediate and easy analysis of compounds from the surface of a sample at ambient conditions.
Andreas Kiontke +5 more
doaj +1 more source
Phenylenediamines and quinone derivatives: analytical advances
Reviews in Analytical ChemistryPhenylenediamines (PDs) and their N,N′-substituted derivatives (PPDs) are widely used antiozonants in rubber and polymer manufacturing, with significant release into the environment via tire wear particles.
Lucarini Fiorella, Staedler Davide
doaj +1 more source
Advanced Functional Materials, EarlyView.This study highlights the integration of stable two‐dimensional covalent organic framework (COF) films as photoactive layers in hybrid nanoenergy devices. The results demonstrate their capacity to generate electricity under both sunny and rainy conditions, showcasing versatility and resilience.
Joab D. Guerrero +13 more
wiley +1 more source
Recent advances in photocatalytic hydrogen peroxide production
PhotoMat, EarlyView., 2023 We classify the representative photocatalytic materials for photosynthesis of hydrogen peroxide (H2O2) in recent years and discuss the related modification methods in detail, providing inspiration and insights for the future design of photocatalysts for H2O2 production.
Jinyu Yan +4 more
wiley +1 more source
Titrimetric Determination of N,N′-Disubstituted p-Phenylenediamines
, 1962 Three types of p-phenylenediamine derivatives used extensively as antioxidants and antiozonants in rubber compounds are N,N′-di-sec-alkyl-, N-sec-alkyl-N′-aryl-, and N,N′-diaryl-p-phenylenediamines.
C. R. Parks, Otto Lorenz
core +1 more source
Advanced Materials, EarlyView.Self‐standing, strong sulfonated covalent organic framework membranes with varied ionic‐group density are developed for osmotic energy conversion. Optimized charge‐governed nanochannels enable highly selective ion transport, delivering a power density of 24.53 W m−2 under seawater/freshwater salinity gradients.
Xi Ma +5 more
wiley +1 more source