The Significant Difference with the Relationships of T2 and Moisture Distribution between Untreated and Esterified Poplar

Abstract:

the moisture distribution in untreated and esterified poplar with Maleic anhydride was studied in the present paper employed nuclear magnetic resonance (NMR). The results show that relaxation times decrease with the the fall of moisture content, and there is a linear equation between the moisture content and transverse relaxation time in esterified wood. The content of bonding water and free water in the esterified wood decreased simultaneously during the drying.

• Periodical: Materials Science Forum (Volumes 704-705)
• Pages: 446-449
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.704-705.446
• Online since: December 2011
• Authors: Xiang Jun Wang, Ming Hui Zhang, Xi Ming Wang
• Keywords: Moisture Content, Moisture Distribution, NMR, Transverse Relaxation Time

References

[1] H. T. LECHERT, in: Water activity: infuences on food quality, edited by L.B. Rockland and G.F. Stewart, New York: Academic Press, 1981, p.223.

[2] N. NAGASHIMA and E. SUZUKI, in: Water activity: infuences on food quality, edited by L. B. Rockland and G. F. Stewart, New York: Academic Press, 1981, p.247.

[3] D. Le Botlan, J. Wennington, and J. C. Cheftel. Journal of Colloid and Interface Science. 2000, 226: 16–21.

DOI: 10.1006/jcis.2000.6785

[4] Araujo CD, MacKay AL, Hailey JRT, Whittall KP. Wood Sci Technol, 1992, 26: 101–113.

[5] Hartley ID, Kamke FA, Peemoeller H. Holzforschung, 1994, 48(6): 474–479.

[6] Giana Almeida, Stephane Gagne, Roger E. Hernandez. Wood Sci Technol, 2007, 41: 293–307.

[7] Brownstein KR. J Magn Reson, 1980, 40(3): 505–510.

[8] Araujo CD, MacKay AL, Whittall KP, Hailey JRT. J Magn Reson B, 1993, 101(3): 248–261.

[9] Rosenkilde A, Glover P. Holzforschung, 2002, 56(3): 312–317.

[10] Casieri C, Senni L, Romagnoli M, Santamaria U, De Luca F. J Magn Reson. 2004, 171(2): 364–372.

[11] Claus Felby, Lisbeth G. Thygesen, Jan B. Kristensen, Henning Jørgensen, Thomas Elder. Cellulose, 2008, 15: 703–710.

DOI: 10.1007/s10570-008-9222-8

[12] L. Senni, C. Casieri, A. Bovino, M. C. Gaetani, F. De Luca. Wood Sci Technol, 2009, 43: 167–180.

DOI: 10.1007/s00226-008-0200-y

[13] Meiboom, S.G.D. Review of Scientific Instruments, 1958, 29: 688.

[14] Li Jian. In: Spectroscopy of Wood. Beijing: Science Press, 2003, p.106.

[15] G. Gardea-Hernandez, R. Ibarra-Gomez, S.G. Flores-Gallardo, C.A. Hernandez-Escobar, P. Perez-Romo, E. A Zaragoza-Contreras. Carbohydrate Polymers, 2008, 71: 1-8.

DOI: 10.1016/j.carbpol.2007.05.014

[16] Belton. P.S. Can nuclear magnetic resonance give useful information about the state of moisture in foodstuffs? Comments on Agricultural and Food Chemistry Science, 1990, 2: 179–209.

[17] Stamm, A. J. (1964). Wood and Cellulose Science. New York: Ronald Press, p.509.

[18] Luca Senni, Michele Caponero, Cinzia Casieri, Ferdinando Felli, Francesco De Luca. Wood Sci Technol, 2010, 44: 165–175.

DOI: 10.1007/s00226-009-0268-z