Top

Cellulose

Published in:

01-12-2009

Approximate solution of the autocatalytic hydrolysis of cellulose

Author: Marcelo H. Gehlen

Published in: Cellulose | Issue 6/2009

Activate our intelligent search to find suitable subject content or patents.

search-config

AI-assisted search

Off

Abstract

Depolymerization of cellulose in homogeneous acidic medium is analyzed on the basis of autocatalytic model of hydrolysis with a positive feedback of acid production from the degraded biopolymer. The normalized number of scissions per cellulose chain, S(t)/n° = 1 − C(t)/C₀, follows a sigmoid behavior with reaction time t, and the cellulose concentration C(t) decreases exponentially with a linear and cubic time dependence, C(t) = C₀exp[−at − bt ³], where a and b are model parameters easier determined from data analysis.

previous article Effect of alkali pre-treatment on hydrolysis of regenerated cellulose fibers (part 1: viscose) by cellulases

next article Controlled thermo-catalytic modification of regenerated cellulosic fibres using magnesium chloride Lewis acid

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

über 67.000 Bücher
über 390 Zeitschriften

aus folgenden Fachgebieten:

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

Jetzt Wissensvorsprung sichern!

inform now

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

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

über 102.000 Bücher
über 537 Zeitschriften

aus folgenden Fachgebieten:

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

Jetzt Wissensvorsprung sichern!

inform now

Calvini P, Gorassini A, Merlani AL (2007) Autocatalytic degradation of cellulose paper in sealed vessels. Restaurator 28:47–54. doi:https://doi.org/10.1515/REST.2007.47

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. doi:https://doi.org/10.1007/s10570-007-9162-8 CrossRef

Ding HZ, Wang ZD (2008) On the degradation evolution equations of cellulose. Cellulose 15:205–224. doi:https://doi.org/10.1007/s10570-007-9166-4 CrossRef

Ekenstam A (1936) The behaviour of cellulose in mineral acid solution: kinetic study of the decomposition of cellulose in acid solution. Ber Deutsch Chem Ges 69:553–559. doi:https://doi.org/10.1002/cber.19360690315 CrossRef

Emsley AM, Stevens GC (1994) Kinetics and mechanisms of the low temperature degradation of cellulose. Cellulose 1:26–56. doi:https://doi.org/10.1007/BF00818797 CrossRef

Emsley AM, Heywood RJ, Ali M, Eley CM (1997) On the kinetics of degradation of cellulose. Cellulose 4:1–5. doi:https://doi.org/10.1023/A:1018408515574 CrossRef

Hallén A (2007) Gompertz law and aging as exclusion effects. Biogerontology 8:595–603. doi:https://doi.org/10.1007/s10522-007-9092-8 CrossRef

Hu ZH, Wang G, Yu HQ (2004) Anaerobic degradation of cellulose by rumen microorganisms at various pH values. Biochem Eng J 21:59–62. doi:https://doi.org/10.1016/j.bej.2004.05.004 CrossRef

Laird AK (1964) Dynamics of tumour growth. Br J Cancer 18:490–502CrossRef

Mu Y, Wang G, Yu HQ (2006) Kinetic modeling of batch hydrogen production process by mixed anaerobic cultures. Bioresour Technol 97:1302–1307. doi:https://doi.org/10.1016/j.biortech.2005.05.014 CrossRef

Stephens CH, Whitmore PM, Morris HR, Bier ME (2008) Hydrolysis of the amorphous cellulose in cotton-based paper. Biomacromolecules 9:1093–1099. doi:https://doi.org/10.1021/bm800049w CrossRef

Zervos S, Moropoulou A (2005) Cotton cellulose ageing in sealed vessels. Kinetic model of autocatalytic depolymerization. Cellulose 12:485–496. doi:https://doi.org/10.1007/s10570-005-7131-7 CrossRef

Title: Approximate solution of the autocatalytic hydrolysis of cellulose
Author: Marcelo H. Gehlen
Publication date: 01-12-2009
Publisher: Springer Netherlands
Published in: Cellulose / Issue 6/2009
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI: https://doi.org/10.1007/s10570-009-9315-z

Springer Professional

Abstract

Please log in to get access to your license.

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Technik"

Springer Professional "Wirtschaft+Technik"

Other articles of this Issue 6/2009

Molecularly thin nanoparticles from cellulose: isolation of sub-microfibrillar structures

Analysis of the chemical composition of cotton seed coat by Fourier-transform infrared (FT-IR) microspectroscopy

New characterization of layer-by-layer self-assembly deposition of polyelectrolytes on cotton fabric

Analysis of galactoglucomannans from spruce wood by capillary electrophoresis

Syntheses of 2,6-O-alkyl celluloses: influence of methyl and ethyl groups regioselectively introduced at O-2 and O-6 positions on their solubility

Solid-state NMR studies of methyl celluloses. Part 2: Determination of degree of substitution and O-6 vs. O-2/O-3 substituent distribution in commercial methyl cellulose samples