Top

next article Diffraction from nonperiodic models of cellulos...

Hint

Swipe to navigate through the articles of this issue

01-04-2012 | LETTER TO THE EDITOR | Issue 2/2012

The role of the Ekenstam equation on the kinetics of cellulose hydrolytic degradation

Journal:: Cellulose > Issue 2/2012

Author:: Paolo Calvini

» Get access to the full-text

Abstract

The meaning of the Ekenstam equation (1/DP − 1/DP°) = kt is shortly discussed. Several misleading statements about its application to cellulose hydrolysis are underlined in order to improve the reliability of kinetic analyses. To this end, some further simple analyses are suggested to the experimentalists.

Please log in to get access to this content

To get access to this content you need the following product:

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

über 50.000 Bücher
über 380 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Umwelt
Maschinenbau + Werkstoffe

Testen Sie jetzt 30 Tage kostenlos.

inform now

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

über 69.000 Bücher
über 500 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Umwelt
Finance + Banking
Management + Führung
Marketing + Vertrieb
Maschinenbau + Werkstoffe
Versicherung + Risiko

Testen Sie jetzt 30 Tage kostenlos.

inform now

Calvini P (2005) The influence of levelling-off degree of polymerisation on the kinetics of cellulose degradation. Cellulose 12:445–447 CrossRef

Calvini P (2010) What went wrong with the kinetics of cellulose degradation? In: Lejeune A, Deprez T (eds) Cellulose: Structure and Properties. Derivatives and Industrial Uses. Nova Science Publishers, NY, pp 417–426

Calvini P, Gorassini A (2006) On the rate of paper degradation: lessons (learned) from the past. Restaurator 27:275–290 CrossRef

Calvini P, Conio G, Princi E, Vicini S, Pedemonte E (2006) Viscometric determination of dialdehyde content in periodate oxycellulose Part II. Topochemistry of oxidation. Cellulose 13:571–579 CrossRef

Calvini P, Gorassini A, Merlani AL (2008) On the kinetics of cellulose degradation: looking beyond the pseudo zero order rate equation. Cellulose 15:193–203 CrossRef

Cheng Y, Brown KM, Prud’homme RK (2002) Preparation and characterization of molecular weight fractions of guar galactomannans using acid and enzymatic hydrolysis. Int J Biol Macromol 31:29–35 CrossRef

Dupont A-L, Mortha G (2004) Comparative evaluation of size-exclusion chromatography and viscometry for the characterisation of cellulose. J Chromatog A 1026:129–141 CrossRef

Emsley AM, Stevens GC (1994) Kinetics and mechanisms of the low-temperature degradation of cellulose. Cellulose 1:26–56 CrossRef

Emsley AM, Heywood RJ, Ali M, Eley CM (1997) On the kinetics of degradation of cellulose. Cellulose 4:1–5 CrossRef

Evans R, Wallis AFA (1989) Cellulose molecular weights determined by viscometry. J Appl Polym Sci 37:2331–2340 CrossRef

Feller RL, Lee SB, Bogaard J (1986) The kinetics of cellulose degradation. In: Needles HL, Zeronian SH (eds) Historic textile and paper materials: conservation and characterization. Adv Chem Ser 212, Am Chem Soc, Washington, DC, pp 329–346

Gehlen MH (2009) Approximate solution of the autocatalytic hydrolysis of cellulose. Cellulose 16:1069–1073 CrossRef

Gilbert R, Jalbert J, Tétreault P, Morin B, Denos Y (2009) Kinetics of the production of chain-end groups and methanol from the depolymerization of cellulose during the ageing of paper/oil systems. Part 1: Standard wood kraft insulation. Cellulose 16:327–338 CrossRef

Glaus MA, Van Loon R (2004) Cellulose degradation at alkaline conditions: long-term experiments at elevated temperatures. Nagra Tech Report 03–08:1–70

Guaita M, Chiantore O, Luda MP (1990) Monte Carlo simulations of polymer degradations. 1. Degradations without volatilization. Macromolecules 23:2087–2092 CrossRef

Håkansson H, Ahlgren P (2005) Acid hydrolysis of some industrial pulps: effect of hydrolysis conditions and raw material. Cellulose 12:177–183 CrossRef

Herdan G (1953) Fitting of polymer distributions of molecular weights by the method of moments. J Polym Sci 10(1):1–18 CrossRef

Hill DJT, Le TT, Darveniza M, Saha T (1996) A study of the degradation of cellulosic insulation materials in a power transformer. Part III. Degradation products of cellulose insulation paper. Polym Degrad Stab 51:211–218 CrossRef

Lauriol J-M, Comtat J, Froment P, Pla F, Robert A (1987) Molecular weight distribution of cellulose by on-line size exclusion chromatography—low angle laser light scattering. Holzforschung 41:165–169 CrossRef

Łojewski T, Zięba K, Knapik A, Bagniuk J, Lubańska A, Łojewska J (2010) Evaluating paper degradation progress. Cross-linking between chromatographic, spectroscopic and chemical results. Appl Phys A 100:809–821 CrossRef

Łojewski T, Zięba K, Kołodziej A, Łojewska J (2011) Following cellulose depolymerization in paper: comparison of size exclusion chromatography techniques. Cellulose 18:1349–1363 CrossRef

Marx-Figini M (1986) The acid-catalyzed degradation of cellulose in the range of medium and low degrees of polymerization. Makromol Chem 187:679–687 CrossRef

McShane CP, Rapp KJ, Corkran JL, Gauger GA, Luksich J (2002) Aging of Kraft paper in natural ester dielectric fluid. In: Proceedings of IEEE 2002 14th international conference on dielectric liquids (ICDL), Graz (Austra) July 7–12, pp 173–177

Montroll E (1941) Molecular size distributions and depolymerization reactions in polydisperse systems. J Am Chem Soc 63:1215–1220 CrossRef

Pavasars I, Hagberg J, Borén H, Allard B (2003) Alkaline degradation of cellulose: mechanisms and kinetics. J Polym Environment 11(2):39–47 CrossRef

Potthast A, Rosenau T, Kosma P (2006) Analysis of oxidized functionalities in cellulose. In: Klemm D (ed) Polysaccharides II, Adv Polym Sci 205, Springer, Berlin, pp 1–48

Potthast A, Kostic M, Schiehser S, Kosma P, Rosenau T (2007) Studies on oxidative modification of cellulose in the periodate system: Molecular weight distribution and carbonyl group profiles. Holzforschung 61:662–667 CrossRef

Potthast A, Schiehser S, Rosenau T, Kostic M (2009) Oxidative modifications of cellulose in the periodate system—Reduction and beta-elimination reactions. Holzforschung 63:12–17 CrossRef

Sawoszczuk T, Barański A, Łagan JM, Łojewski T, Zięba K (2008) On the use of ASTM closed vessel tests in accelerated ageing research. J Cult Herit 9:401–411 CrossRef

Schult T, Hjerde T, Optun OI, Kleppe PJ, Moe S (2002) Characterization of cellulose by SEC-MALLS. Cellulose 9:149–158 CrossRef

Sharples A (1971) Degradation of cellulose and its derivatives. A. Acid hydrolysis and alcoholysis. In: Bikales NH, Segal L (eds) Cellulose and cellulose derivatives Vol V pt V, 2nd edn. Wiley-Intescience, NY, pp 991–1006

Stephens CH, Whitmore PM, Morris HR, Bier ME (2008) Hydrolysis of the amorphous cellulose in cotton-based paper. Biomacromolecules 9:1093–1099 CrossRef

Stol R, Pedersoli JL, Poppe H, Kok WTh (2002) Application of size exclusion electrochromatography to the microanalytical determination of the molecular mass distribution of celluloses from objects of cultural and historical value. Anal Chem 74:2314–2323 CrossRef

Whitmore PM, Bogaard J (1994) Determination of the cellulose scission route in the hydrolytic and oxidative degradation of paper. Restaurator 15: 26-45 http://www.cmu.edu/acrc/Publications/h%20and%20o%20degradation.pdf. Accessed 21 December 2011

Zervos S, Moropoulou A (2005) Cotton cellulose ageing in sealed vessels. Kinetic model of autocatalytic depolymerization. Cellulose 12:485–496 CrossRef

Zou X, Uesaka T, Gurnagul N (1996) Prediction of paper permanence by accelerated ageing I. Kinetic analysis of the aging process. Cellulose 3:243–267 CrossRef

Title: The role of the Ekenstam equation on the kinetics of cellulose hydrolytic degradation
Author:: Paolo Calvini
Publication date: 01-04-2012
DOI: https://doi.org/10.1007/s10570-011-9645-5
Publisher: Springer Netherlands
Journal: Cellulose
Issue 2/2012
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X

Springer Professional

Hint

Swipe to navigate through the articles of this issue

Abstract

Please log in to get access to this content

To get access to this content you need the following product:

Springer Professional "Technik"

Springer Professional "Wirtschaft+Technik"

Other articles of this Issue 2/2012

Ultra porous nanocellulose aerogels as separation medium for mixtures of oil/water liquids

Arabinoxylan structure affects the reinforcement of films by microfibrillated cellulose

Cellulose gel and aerogel from LiCl/DMSO solution

Salt-induced acceleration of chemical reactions in cellulose nanopores

Saccharification of Brazilian sisal pulp: evaluating the impact of mercerization on non-hydrolyzed pulp and hydrolysis products

Immobilization of lysozyme-cellulose amide-linked conjugates on cellulose I and II cotton nanocrystalline preparations