X-Ray Analysis of Textile Fibres Part 1A, Supplement to Literature Survey

In a previous paper 204 a survey was made of the literature relating to the X-ray work on textile and related fibres. The original survey extended to the middle of 1932. The present supplement brings the literature to the end of 1933. 1932 (Continued) (a) Structure ARREN 1&dquo;4 showed how the fibrous nature and the strength and flexi-W hility of asbestos fibres may be explained in terms of the crystal structure, and this is of interest because of the close analogy to textile fibres. Tho structure of feathers, horn and other keratin materials is beginning to be correlated with studies on wool and hair by Astbury and coworkers.11>0 Two articles giving a review and general diseussion of the X-ray interpretation of the micellar and the molecular structure of fibres was also published by Astbury.&dquo;’° ~ 107 A new book, containing a de-tailed discussion of the structure of cellulose and its relation to the physi-cal and chcmical properties of cellulose fibres, was published by Mark.lDs (b) Chemical Reactions Trillat’ll found that nitrocellulose dissolves in dimethyl ketone to give a crystal structure which differs from the original material. He attributes this to the formation of an addition compound which returns to the orig-inal nitrocellulose crystal structure upon drying. Trinitrocellulosc gives the best erystalline X-ray pattern. Katz and Weidinger 200 observed a similar example of addition compounds for acetoramie which contains s either acetic anl1Jdride or benzine as an essential lattice component. Upon de-swelling these components are lost and a diffuse X-ray diagram is ob-tained. Sakurada and Hutino:lOt, 202, 203 reported the results of their X-ray investigations on cellulose xanthate and alkalicellulose. 193