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Can I read Effects of 2,4-Ionenes of Different Molar Masses on the Oxidative Coupling of Thiol Catalyzed by Cobaltphthalocyanine on EtoBox?
Effects of 2,4-Ionenes of Different Molar Masses on the Oxidative Coupling of Thiol Catalyzed by Cobaltphthalocyanine by K.H. van Streun; P. Piet; A.L. German is a Materials Science article available to read on EtoBox.
What is Effects of 2,4-Ionenes of Different Molar Masses on the Oxidative Coupling of Thiol Catalyzed by Cobaltphthalocyanine about?
Almtraet--A photometric method is developed for the determination of the molar mass of 2,4-ionene by attaching a chromophoric moiety to its end-groups. Molar mass determination of these polyelectrolytes by acid-base titration of the amine end-groups is also possible, and confirms the photometric method. The effects of molar mass of 2,4-ionenes on the oxidative coupling of 2-mercaptoethanol (ME) was studied in the presence of cobalt(II)phthalocyanine-tetra-sodium-sulphonate (CoTSPc). Monomeric analogues of 2,4-ionene showed no increase of reaction rate as compared with the polymer-free system. However, relatively low molar mass ionene (M, = 1740) showed a dramatic increase of reaction rate. The reactivity showed an optimum around pH = 8. Saturation kinetics (Michaelis-Menten kinetics) were observed. The calculated turnover number was 3200 sec-t and3600sec 1 for)kl"n= 6600and h,St, = 1740, respectively. The stoichiometry of the reaction was disturbed at low thiol concentration.
Who reads Effects of 2,4-Ionenes of Different Molar Masses on the Oxidative Coupling of Thiol Catalyzed by Cobaltphthalocyanine?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- K.H. van Streun; P. Piet; A.L. German
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0014-3057)
- Published
- 1987
- Language
- EN
- Field
- Materials Science (Physical Sciences)