Topic
Carboxylic acid
About: Carboxylic acid is a research topic. Over the lifetime, 48544 publications have been published within this topic receiving 605696 citations.
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TL;DR: A model was developed for the flux of a solid monoprotic carboxylic acid in aqueous buffered solutions as a function of the solution pH and the physicochemical properties of the buffer, which accurately predicts the dissolution of 2-naphthoic acid.
151 citations
TL;DR: In this paper, a two-step modification using both propionic acid and n-hexylamine was used to obtain a high concentration of TiO2 nanoparticles in the organic solvent.
151 citations
TL;DR: In this paper, the detailed oxidation products have been identified and compared from the γ-, photo-, and thermally-initiated oxidation of unstabilized polypropylene films.
Abstract: The detailed oxidation products have been identified and compared from the γ-, photo-, and thermally-initiated oxidation of unstabilized polypropylene films. Products were identified and quantified by a combination of iodometric analysis and infrared spectroscopy. Spectral resolution was enhanced by derivatization reactions which allow the quantification of primary, secondary, and tertiary hydroperoxide and alcohol groups as well as more reliable analysis of carbonyl species. In contrast to polyethylene oxidation which yields predominantly ketone with lesser amounts of secondary hydroperoxide and carboxylic acid, polypropylene oxidizes to give predominantly tertiary hydroperoxide and lesser quantities of secondary hydroperoxide and ketone. In addition carboxylic acid groups are a minor product except at high degrees of thermal and photoinitiated oxidation. © 1993 John Wiley & Sons, Inc.
151 citations
TL;DR: This tunable mixed-charge copolymer surface containing positively charged quaternary amine monomers and negatively-charged carboxylic acid monomers can be used to collect a contaminant and then be externally stimulated to release the contaminant to allow for analysis of its composition.
151 citations
TL;DR: The results support the concept that epi‐jasmonic acid may be converted into a leucine or isoleucine conjugate at an early stage in the natural signal transduction pathway.
151 citations