Cellulose I triacetate

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  Cellulose I triacetate

Linkage : beta 1-4     

Space Group : orthogonal P21

Unit Cell Dimensions (a, b, c in Å and α, β, γ in °)

(No values are displayed if no information is available or the value is zero)

a (Å) = 23.63 - b (Å) = 6.27 - c (Å) = 10.43

Helix Type : The two chains pack with parallel polarity and the two-fold screw axes coincide with the chain axes

Method(s) Used For Structure Determination : X-ray diffraction and stereochemical model analysis

Link to the Abstract : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TXW-48CWDH4-J5&_user=10&_coverDate=01%2F31%2F1978&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_searchStrId=1620778597&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=66c67f73020655db31b79c96be82524e&searchtype=a

Reference :

Molecular and crystal structure of cellulose triacetate I: A parallel chain structure
Stipanovic, A.J. and Sarko, A., Polymer 1978, 19(1), 3-8

 

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Unit          cellulose-triacetate-I_expanded