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A 13C solid-state NMR study of ion-exchange resins derived from natural polysaccharides


, : A 13C solid-state NMR study of ion-exchange resins derived from natural polysaccharides. Carbohydrate Research. 262(2): 185-194

Several ion-exchange resins and resin precursor materials formed from natural polysaccharides have been examined by solid-state NMR spectroscopy. NMR spectra of the dry resin contained broad, featureless bands due to the polysaccharide backbone of the resin and additional broad bands due to attached groups. On addition of water to the resin, the resonances for the polysaccharide backbone remained broad, but those due to the attached groups were considerably sharpened. Many individual resonances of the attached groups could thus be assigned, so that changes brought about by chemical modification of the polysaccharide during the production of an ion-exchange resin could be followed.

US$19.90

DOI: 10.1016/0008-6215(94)84178-0


Other references

Rose, M.; Falandysz, J., 2009: Emerging POPs. A special session at "Dioxin 2008" in Birmingham. This article discusses the topics and ideas presented at the Special Session of the conference Dioxin 2008 (28th International Symposium on Halogenated Environmental Organic Pollutants and POPs) titled: "Emerging POPs". The session was d...

Šefer, D.; Bižić-Radulović, S.; Kraguljac-Kurtović, N.; Bogdanović, A.; Čokić, V.; Miljić, P.; Beleslin-Čokić, B.; Knežević, V.; Mitrović-Ajtić, O.; Leković, D.; Gotić, M., 2016: Proliferative characteristics of Philadelphia-negative myeloproliferative neoplasms - clinical implications. Philadelphia-negative myeloproliferative neoplasms (Ph<sup>-</sup> MPN) are characterized by overproduction of one or more blood cell lines. We studied the proliferative characteristics of 91 patients with de novo Ph<sup>-</su...

Walden, A., 1984: Effect of oral hydrotherapy for horses with chronic, obstructive bronchitis on various blood values. The treatment consisted of administering by stomach tube a 0.9% sodium chloride solution (at body heat) at 6.8 litres per 100 kg body weight, amounting to 40 litres for the average horse. It was repeated twice at intervals of one day. Each adminis...

Guyton, M.Kelly.; Sribnick, E.A.; Ray, S.K.; Banik, N.L., 2005: A role for calpain in optic neuritis. Optic neuritis (ON) is one of the most commonly presenting symptoms of multiple sclerosis (MS), which is a neurodegenerative disease of the central nervous system (CNS) thought to be caused by an attack on myelin by autoreactive T cells and other...

Rosolem, C.; Machado, J.; Kantack, R., 1983: Foliar application of fertilizers to beans. IV. Effects of level and time of NPKS application. Revista de agricultura 58(4): 305-314

Vathy, I., 2001: Prenatal opiate exposure: long-term CNS consequences in the stress system of the offspring. Our data show that prenatal morphine exposure induces long-term alterations in adult brain and behavior in both male and female rats, and these alterations are sex-specific. It is also evident that the alterations are not restricted to a single br...

L.C.ao Pin; Cui Y.B.o; Yang Qing Gui; H.J., 2003: Preliminary study on common antigen of Tyrophagus putrescentiae and Dermatophagoides farine. Objective: To investigate whether there is common antigen between Tyrophagus putrescentiae (TP) and Dermatophagoides farine (DF) or not. Methods: The correlation of ELISA optic densities between TP and DF - specific IgE in atopic sera was analyzed...

Masquelier, J., 1951: Comparative action of various vitamin P factors on the oxidation of ascorbic acid by cuprous ions. Bulletin de la Societe de Chimie Biologique 33(3-4): 302-303

Anonymous, 2002: Staff education at the click of a mouse. Or Manager 18(6): 17-17

Leipzig B., 1985: Assessment of mandibular invasion by carcinoma. In this prospective study of 31 patients, the most sensitive assessment of malignant invasion of the mandible was by physical examination. Bone scanning and conventional roentgenographs are useful adjuncts in the staging evaluation of patients whe...