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Bryce Crawford

Bio: Bryce Crawford is an academic researcher. The author has contributed to research in topics: Kinetics & Infrared. The author has an hindex of 3, co-authored 4 publications receiving 425 citations.


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Journal ArticleDOI
TL;DR: A review of the state of the art in the field of chemistry of the NO 3 radical is presented in this paper, with a focus on the relationship between the laboratory and the atmospheric studies.

694 citations

Journal ArticleDOI
TL;DR: In this article, a group of par- ticipants from 11 institutions in different countries recorded the FTIR spectra of PANI bases prepared from the samples obtained in the solutions of strong and weak acids and in alkaline medium within the framework of an IUPAC project.
Abstract: Polyaniline (PANI), a conducting polymer, was prepared by the oxidation of ani- line with ammonium peroxydisulfate in various aqueous media When the polymerization was carried out in the solution of strong (sulfuric) acid, a granular morphology of PANI was obtained In the solutions of weak (acetic or succinic) acids or in water, PANI nanotubes were produced The oxidation of aniline under alkaline conditions yielded aniline oligomers Fourier transform infrared (FTIR) spectra of the oxidation products differ A group of par- ticipants from 11 institutions in different countries recorded the FTIR spectra of PANI bases prepared from the samples obtained in the solutions of strong and weak acids and in alkaline medium within the framework of an IUPAC project The aim of the project was to identify the differences in molecular structure of PANI and aniline oligomers and to relate them to supramolecular morphology, viz the nanotube formation The assignment of FTIR bands of aniline oxidation products is reported

491 citations

Journal ArticleDOI
TL;DR: Reconstitution experiments with GTP-binding fractions obtained from isoproterenol-treated membranes suggested that the characteristic synergistic amplification of hormone action by guanylnucleotides is mediated via the guanyl nucleotide binding protein.

412 citations

Journal ArticleDOI
TL;DR: The rational design and synthesis of a novel family of highly effective hydrogelators with a modular architecture based on a 1,3,5-triamide cis,cis-cyclohexane core which functions as a generic gelating scaffold are reported.
Abstract: pH-sensitive gels: By using a cyclohexane-based scaffold to which various amino acid based substituents can be connected, low-molecular-weight compounds were obtained that can gelate water at very low concentrations. Their modular design (see picture: AA = amino acid(s), X = hydrophilic substituent, dark purple = hydrophobic region, light purple = hydrophilic region), allows tuning of the thermally and pH-induced reversible gel-to-sol transition of their gels.

289 citations