Sihtola, Hannes

name

• Sihtola, Hannes

Authored works

• A method for the determination of x-viscosity by means of slurry steeping and by the ageing of alkali cellulose : 7th communication on investigations into the viscose process
• Aspects of the mechanism of molecular fractionation of high polymers
• Av, ein neuer Verstopfungswert für Viskose und seine einfache Bestimmung mit einem automatischen Filtriergerät
• Changes in "carbonyl spectrum" during bleaching, steeping and aging : 4th communication on investigations of carbonyl groups of cellulose
• Chemical properties of modified celluloses
• Classification of carbonyl groups in cellulose on the basis of their reaction rates at oximation : (2nd communication on investigations on carbonyl groups of cellulose)
• Classification of carbonyl groups in oxidized cellulose based upon their reaction rates on oximation : 3rd communication on investigations on carbonyl groups of cellulose
• Cupriethylenediamine and cuprammonium hydroxide as solvents in molecular fractionation of cellulose
• Die Bestimmung der Vorreifegeschwindigkeit der Alkalicellulose
• Dissolving pulps : research for quality development
• Durch Wärmebehandlung verursachte chemische Veränderungen in Cellulose und Regeneratfasern : 5. Mitteilung über Untersuchungen an Carbonylgruppen in Cellulose
• Eine Untersuchung über die Hydrolyse der Cellulose in konzentrierten ZnCl[sub 2]-Lösungen
• Fractionation of high polymers by lowering the temperature of the solution
• Investigations on the viscose process : 3
• Makromolekyylikemian menetelmien käytöstä selluloosatutkimuksessa : (The methods of macromolecular chemistry used in investigations on cellulose
• Molekylfraktionering och cellulosans struktur : föredrag vid de Nordiska pappers- och cellulosaingenjörsföreningarnas kongress i Köpenhamn 27-28 augusti 1947
• Mäntyrotu Keski-Suomesta selluloosapuuksi Pohjois-Suomeen
• Om cellulosans funktionella grupper och bestämning av dessa
• On the acidic character of cellulose : 2, The acidity of carboxyl groups in cellulose
• On the oxidation of sulphite pulp during afterbleaching
• Present trends in the laboratory testing of dissolving pulps : Dissolvingmassojen laboratoriokoetuksen nykyisestä suuntauksesta
• Selluloosa- ja makromolekyylikemiaa USA:ssa : (Cellulose and macromolecular chemistry on congresses and in research institutes in USA)
• Selluloosakemiallisen tutkimuksen tämänhetkisestä tilasta : The present state of cellulose-chemical research
• Tainionkosken V.P.K:n urheilijat : toimintakertomus 1928-1938
• The degradation of cellulose by ultraviolet light
• The evalution of viscose pulp by using a small scale method for preparation of viscose
• The formation of crosslinks in cellulose during nitration
• The influence of cations on the yellowing of monocarboxy-cellulose : 5th communication on the yellowing of pulp
• The influence of chlorine dioxide on the yellowing of cellulose : 4th communication on the yellowing of pulp
• The influence of the ash constituents on the acetylation behaviour of pulp
• The yield in the viscose process compared with the alkali solubility of the pulp
• Valkaistun massan kellertymisestä ja sen mittaamisesta : (On the brightness reversion and the measurement of yellowing of bleached pulps)
• Über die Acetylierung von Zellstoff
• Über die Bestimmung von verschiedenartigen Carbonylen in Cellulose

Works contributed to

• Carboxyl groups and cations as factors affecting the yellowing of cellulose : 3rd communication on the yellowing of pulp
• Chlorine dioxide in the bleaching of dissolving pulps : 4th communication on dissolving pulps
• Comparison and conversion of viscosity and DP-values determinated by different methods
• Determination of the percentage of birch fibres in mixed pulps
• Eftergulningens beroende av pH hypokloritbehandling av cellulosa
• Eftergulningens beroende av pH vid hypokloritbehandling av sellulosa
• Graft copolymers of cellulose with acrylamide : polymerisation initiated by ceric ion redox systems
• Investigations into the control of viscosity in the bleaching of viscose pulps : 7th communication on investigations on the preparation of dissolving pulps
• Investigations on carbonyl groups of cellulose
• Investigations on the preparation of dissolving pulps : 1, The influence of chip quality on the properties of Ca-bisulphite dissolving pulps
• Investigations on the viscose process : 3
• Molecular fractionation of alkali cellulose from cadoxeni solution
• Monosaccharides in technical sulphite cooking liquor
• On reactions in acetylation mixture with no substrate present for acetylation : 1st communication on investigations into the acetylation of cellulose
• On structural changes in pulp fibres due to cold alkali treatment : 3, The influence of beating prior to cold alkali treatment on the hydrocellulose yield and the fraction of accessible hydroxyls
• On Stuctural changes in pulp fibres due to cold alkali treatment : V. A. comparison of the effects of cold alkali treatment and sulphate digestion
• On the conductometric determination of the particle size distribution in viscose
• On the evaluation of viscose pulp with regard to the brighness of viscose yarn obtained therefrom : 9th communication on investigation into the viscose process
• On the factors influencing the draining of lye from alkali cellulose slurry, and a method for determining the drainage index
• On the influence of substitution upon the "acidity" of cellulose
• On the influence of the viscosity on the filterability of viscose : 8th communication on investigation into the viscose process
• On the peroxide bleaching of viscose pulps : 5th communication on investigations on the preparation of dissolving pulps
• On the reasons for the changes in wet sulphate pulp under the bale wire
• On the yellowing of pulp : 2nd communication
• The action of paracetic acid solutions on cellulose and oxycellulose
• The behaviour of O-fibres during the bleaching process and their influence on the filterability of viscose : 3rd communication on dissolving pulps
• The catalytic degradation of cellulose in the bleaching of viscose pulps
• The influence of beating on the brightness of pulp : 1st communication of investigations into the factors contributing to reduction in the brightness of pulp in connection with beating
• The influence of the precipitant on the results of molecular fractionation by precipitation
• Über die Einwirkung der Oxydation auf das Verhältnis zwischen den als Nitrat und in alkalischer Lösung gemessenen Viskositäten der Cellulose

Works about Sihtola, Hannes