NDLI: Conformational and optical properties of macromolecules of some aliphatic-substituted cellulose esters

Content Provider	Springer Nature Link
Author	Tsvetkov, N. V. Bushin, S. V. Bezrukova, M. A. Astapenko, E. P. Mikusheva, N. G. Lebedeva, E. V. Podseval’nikova, A. N. Khripuv, A. K.
Copyright Year	2013
Abstract	Synthesized cellulose pelargonates, tridecanoates, valerates, and acetovalerates of various molecular weights are studied in chloroform, dioxane, and tetrachloroethane solutions by the methods of isothermal translational diffusion, sedimentation velocity method, flow birefringence (dynamooptical Maxwell effect), viscometry, and equilibrium electric birefringence (Kerr effect). The equilibrium polymer rigidities are determined and the role of the solvent and temperature in the formation of the conformational characteristics of the macromolecules under study is analyzed. The values of the intrinsic optical anisotropy of the monomeric units of the studied cellulose esters are experimentally determined. The contribution of the side chains to the optical anisotropy of the macromolecules of cellulose esters with aliphatic substituents is analyzed. The results obtained in this study are compared with the data on the cellulose esters with the aliphatic side substituents studied earlier. For the studied samples, the values of the longitudinal components of the monomeric unit dipoles in a nonpolar solvent are estimated.
Starting Page	1057
Ending Page	1071
Page Count	15
File Format	PDF
ISSN	09690239
Journal	Cellulose
Volume Number	20
Issue Number	3
e-ISSN	1572882X
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-03-23
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Macromolecule conformation Aliphatic groups Cellulose Maxwell effect Kerr effect Bioorganic Chemistry Physical Chemistry Organic Chemistry Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Polymers and Plastics

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