Cellulose triacetate chemistry

Derham, M., Edge, M., WTUiams, D. A. R., WTUiamson, D. M. (1992). The Degradation of cellulose triacetate studied hy nuclear resonance spectroscopy and molecular modeling. In Postprints of Polymers in Conservation conference Manchester, 17-19 July 1991 (N.S. AUen, M. Edge and C.V. Horie, eds.) pp. 125-137 Royal Society of Chemistry. 

Bhattacharyya, A., Mohapatra, P. K., Ghanty, T. K., and Manchanda, V. K. 2008. A pH dependent transport and back transport of americium(III) through the cellulose triacetate composite polymer membrane of Cyanex-301 and TBP Role of H-bonding interactions. Physical Chemistry Chemical Physics 10 6274-6280. 

Cellulose acetate and triacetate fibres are brightened with disperse-type FBAs, including derivatives of 1,3-diphenylpyrazoline (11.19). These form a commercially important group of FBAs. If suitably substituted they can be applied to substrates other than acetate and triacetate. The commercially more important products of this type are used to brighten nylon and acrylic fibres. Their preparation and other aspects of pyrazoline chemistry are discussed in section 11.8. Examples of pyrazolines used to brighten acetate and triacetate... 

The Dylux 503 formulation contained a HABI, the leucodye TLA-454, a mixture of quinones, triethanolamine triacetate, several plasticizers, an organic acid, cellulose acetate butyrate binders, as well as antiblocking agents (fluorinated derivatives) as well as a silica derivative to provide tooth to the coating. The selection was made to provide maximum performance at minimum mill cost. The paper substrate required had high holdout, so as to permit two-sided coatings as well as to minimize the wicking of chemistry into the base. 

In natural polymer chemistry a vast number of derivatives and technologies involving cellulose including the process for rayon the chromatographic material diethylaminoethylcellulose and numerous esters such as the triacetate indicate both the historical and present-day role of this important polymeric carbohydrate. 

The most commonly used EWAs in laundry products today are shown in Table 28.2 and represent three chemistries—distyrylbiphenyl, coumarin, and stilbene. The selection of the EWA to be used in a specific type of laundry product will depend on several factors such as compatibility with the formulation, fabrics, product claims, laundry conditions, application, and manufacturing limitations. For example, compounds 60 and 62-65 are substantive to cellulosics and compound 61 is substantive to sUk, wool, nylon, secondary acetate, and triacetate fibers. Eor bleach-based products (e.g., hydrogen peroxide) compound 60 is used as distyrylbiphenyl chemistry exhibits the required stability. 

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