By Thomas J. Heinze and Wolfgang G. Glasser (Eds.)
content material: The function of novel solvents and resolution complexes for the instruction of hugely engineered cellulose derivatives / Thomas Heinze and Wolfgang G. Glasser --
Regiocontrol in cellulose chemistry : ideas and examples of etherification and esterification / D.O. Klemm --
Long-chain cellulose esters : practise, houses, and point of view / Kevin J. Edgar, Thomas J. Pecorini, and Wolfgang G. Glasser --
triggered part separation : a brand new synthesis thought in cellulose chemistry / T. Liebert and Thomas Heinze --
tools for the selective oxidation of cellulose : coaching of 2,3-dicarboxycellulose and 6-carboxycellulose / A.C. Besemer, A.E.J. de Nooy, and H. van Bekkum --
response of bromodeoxycellulose / N. Aoki, M. Sakamoto, and ok. Furuhata --
Cationization of cellulose fibers in view of functions within the paper / E. Gruber, C. Granzow, and Th. Ott --
A initial learn of carbamoylethylated ramie / C.C.L. Poon, Y.S. Szeto, W.K. Lee, W.L. Chan, and C.W. Yip --
Characterization of polysaccharide derivatives with recognize to substituent distribution within the monomer unit and the polymer chain / Petra Mischnick --
Characterization of cellulose esters via solution-state and solid-state NMR spectroscopy / Douglas W. Lowman --
13C NMR structural learn on cellulose derivatives with carbonyl teams as a delicate probe / Y. Tezuka --
Novel ways utilizing FTIR spectroscopy to review the constitution of crystalline and noncrystalline cellulose / T. Kondo, Y. Kataoka, and Y. Hishikawa --
Molecular weights and molecular-weight distributions of cellulose and cellulose nitrates in the course of ultrasonic and mechanical degradation / Marianne Marx-Figini --
Depolymerization of cellulose and cellulose triacetate in traditional acetylation approach / Shu Shimamoto, Takayuki Kohmoto, and Tohru Shibata --
growth within the enzymatic hydrolysis of cellulose derivatives / B. Saake, St. Horner, and J. Puls --
proof of supramolecular constructions of cellulose derivatives in resolution / Liane Schulz, Walther Burchard, and Reinhard Dönges --
section habit, constitution, and homes of regioselectively substituted cellulose derivatives within the liquid-crystalline kingdom / Peter Zugenmaier and Christina Derleth --
Blends of cellulose and artificial polymers / R. St. J. Manley --
stories of the molecular interplay among cellulose and lignin as a version for the hierarchical constitution of wooden / Wolfgang G. Glasser, Timothy G. Rials, Stephen S. Kelley, and Vipul Davé --
A examine of the molecular interactions taking place in blends of cellulose esters and phenolic polymers / M.F. Davis, X.M. Wang, M.D. Myers, J.H. Iwamiya, and S.S. Kelley --
Interchain hydrogen bonds in cellulose-poly(vinyl alcohol) characterised by way of differential scanning calorimetry and solid-state NMR analyses utilizing cellulose version compounds / Tetsuo Kondo and Chie Sawatari --
Supramolecular architectures of cellulose derivatives / M. Schulze, M. Seufert, C. Fakirov, H. Tebbe, V. Buchholz, and G. Wegner --
floor segregation phenomena in blends of cellulose esters / Ulrike Becker, Jason Todd, and Wolfgang G. Glasser --
Relation among the stipulations of amendment and the homes of cellulose derivatives : thermogelation of methylcellulose / J. Desbrieres, M. Hirrien, and M. Rinaudo.
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Extra info for Cellulose Derivatives. Modification, Characterization, and Nanostructures
The "impeller" acids efficiently catalyze chain cleavage and make the degree of polymerization (DP) difficult to control. Residues of the impeller acid may also be found on the product. A modern version of the impeller method, which uses trifluoroacetic anhydride as the impeller (3), effectively conserves DP but provides access only to fully substituted esters. A second approach to the preparation of long-chain cellulose esters was described by Malm and coworkers in 1951 (1). They found that acylation with the appropriate acid chloride in 1,4-dioxane with pyridine as an acid acceptor and catalyst afforded cellulose triesters ranging from acetate to hexanoate to palmitate.
Adv. In Colloid and Interface Sci. 1996, 64, 45. ; Kondo, T. Macromolecules 1996, 29, 2392. (7) Kondo, T. J. Polym. , Polym. Phys. 1994, B32, 1229. ; Kondo, T. Polymer Bull. 1994, 32, 77. ; ACS Symposium Series; American Chemical Society: Washington, DC, 1998. OAc Ν a® e OH(OS0 Na®) 3 MeO OMe 6-0-, 2,6-di-O1 R - Me, Thx, Bu' R = Me, Bn, Ac 2 Figure 11. Regiocontrol by selective protection and activation. ; ACS Symposium Series; American Chemical Society: Washington, DC, 1998. ch002 2 ΗΟ^Τ-ή 1 R Me,S 1 OSiMe,R N a H R'Me Si0' 2 OR 2 ,° Ο N® B u F © 4 2,6-di-O- ^OSiMe R HO OSiMe,R 3-0Thx, 2 - Bn (i) Bu' R = Me, Bn OBn 2-0- 1 AcO R 1 2 Me, N (") 1 R Me SiCI 2 A c .
14). molecular mobility in the temperature range between -60 to +60°C (Fig. 1) (14). A s expected, the mechanical and Theological properties of several of the LCCEs, listed in Tables IV and V, vary with changes in ester side-chain length and degree of substitution similar to the effect of adding greater amounts of external plasticizer. Indeed, with sufficient side-chain length and degree of substitution, the properties (particularly modulus and melt viscosity) equal those of plasticized C A and CAP, affording LCCEs that can be easily processed without external plasticizer.
Cellulose Derivatives. Modification, Characterization, and Nanostructures by Thomas J. Heinze and Wolfgang G. Glasser (Eds.)