Molecular interactions in bacterial cellulose composites studied by 1D FT-IR and dynamic 2D FT-IR spectroscopy

被引:202
作者
Kacuráková, M
Smith, AC
Gidley, MJ
Wilson, RH
机构
[1] Inst Food Res, Norwich Lab, Norwich NR4 7UA, Norfolk, England
[2] Unilever Res, Sharnbrook MK44 1LQ, Beds, England
基金
英国生物技术与生命科学研究理事会;
关键词
cellulose composites; FT-IR spectroscopy; dynamic 2D FT-IR spectroscopy; linear stretching;
D O I
10.1016/S0008-6215(02)00102-7
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Specific strain-induced orientation and interactions in three Acetobacter cellulose composites: cellulose (C), cellulose/pectin (CP) and cellulose/xyloglucan (CXG) were characterized by FT-IR and dynamic 2D FT-IR spectroscopies. On the molecular level, the reorientation of the cellulose fibrils occurred in the direction of the applied mechanical strain. The cellulose-network reorientation depends on the composition of the matrix, including the water content, which lubricates the motion of macromolecules in the network. At the submolecular level, dynamic 2D FT-IR data suggested that there was no interaction between cellulose and pectin in CP and that they responded independently to a small amplitude strain, while in CXG, cellulose and xyloglucan were uniformly strained along the sample length. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1145 / 1153
页数:9
相关论文
共 26 条
[1]  
ASTLEY OM, UNPUB
[2]  
ASTLEY OM, 2000, SRS SCI REP, P114
[3]   AN INFRARED DICHROISM INVESTIGATION OF SEGMENTAL ORIENTATION IN DRY AND SWOLLEN POLY(DIMETHYLSILOXANE) NETWORKS [J].
BESBES, S ;
BOKOBZA, L ;
MONNERIE, L ;
BAHAR, I ;
ERMAN, B .
POLYMER, 1993, 34 (06) :1179-1182
[4]   Molecular architecture of polysaccharide helices in oriented fibers [J].
Chandrasekaran, R .
ADVANCES IN CARBOHYDRATE CHEMISTRY AND BIOCHEMISTRY, VOL 52, 1997, 52 :311-439
[5]   In vitro synthesis and properties of pectin/Acetobacter xylinus cellulose composites [J].
Chanliaud, E ;
Gidley, MJ .
PLANT JOURNAL, 1999, 20 (01) :25-35
[6]   Static and dynamic FT-IR linear dichroism studies of plasticization effects in a polyurethane elastomer [J].
Graff, DK ;
Wang, HC ;
Palmer, RA ;
Schoonover, JR .
MACROMOLECULES, 1999, 32 (21) :7147-7155
[7]  
GRIFFITHS PR, 1986, FOURIER TRANSORM INF, P437
[8]   Two-dimensional step-scan FTIR:: a tool to unravel the OH-valency-range of the spectrum of Cellulose I [J].
Hinterstoisser, B ;
Salmén, L .
CELLULOSE, 1999, 6 (03) :251-263
[9]   Effect of fiber orientation in dynamic FTIR study on native cellulose [J].
Hinterstoisser, B ;
Åkerholm, M ;
Salmén, L .
CARBOHYDRATE RESEARCH, 2001, 334 (01) :27-37
[10]   Application of dynamic 2D FTIR to cellulose [J].
Hinterstoisser, B ;
Salmén, L .
VIBRATIONAL SPECTROSCOPY, 2000, 22 (1-2) :111-118