By Kenji Kamide

Many hugely acclaimed and authoritative books on polymer technological know-how are inclined to specialise in man made polymers. Cellulose and Cellulose Derivatives is the 1st authoritative publication at the topic. It examines contemporary advancements, with specific connection with cellulose (in aqueous alkali) and cellulose acetate. choked with examples, the writer takes an in-depth examine the subject, utilizing the main trustworthy experimental facts to be had. A complete method of the basic ideas of cellulose and its derivatives in answer makes Cellulose and Cellulose Derivatives perfect studying for newbies in addition to skilled cellulose scientists.

* Outlines the theoretical basics of cellulose and cellulose derivatives
* provides entire and trustworthy experimental ends up in figures and tables
* hugely illustrated and simple to learn

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Extra info for Cellulose and Cellulose Derivatives: Molecular Characterization and Its Applications: Molecular Characterization and Its Application (Polymer Science Library)

Sample text

00 and may be due to experimental uncertainty. 1). These intensities were compared with those of three acetylmethyl proton peaks in the ^H NMR spectrum of the same sample and they assigned the three carbonyl carbon peaks to C^, C2, and C3 positions from the low magnetic field. 92. Note that they observed at least four peaks in the carbonyl carbon region for CA with low ((F)), and they assigned one of these peaks as that from acetic acid contaminated in CA sample, by assuming CA with ((F)) less than unity.

Steps 1 and 2 were repeated in order to prepare CA with relatively higher ((F)). 28 shows ^^C NMR spectra of CA samples, whose acetyl groups are located only at the Ce position in DMS0-J6- The peaks at ca. 170, 6 0 - 1 0 5 , and 2 0 p p m are assigned to the carbonyl carbon,^^ the skeleton carbon, ^^ and the methyl carbon of acetyl group,^^ respectively. 29 shows ^^C NMR spectra of the carbonyl carbon of several CA samples in DMS0-J6. Kowsaka et al. 42 Acetylcarbonyl(/ooo-/ooi, /ooi -/ooo) Acetylcarbonyl(/ooi -/ooi) Ci (/ooo-fooo^/ooo-Zooi or/oo 1-/000) Ci (/000-/001 or/oo 1-/000) Ci (/oo 1-/001) C4 (/ooo -/ooo^ /ooo -/oo 1»/oo 1 -/ooo) C4 (/oo 1-/001) C5 (/ooo) C3 C3 C3 (/ooo or/ooo-/ooo) C3 C3 (/oo 1-/001) C2 (/ooo-/ooo) C2 C2 (/oo 1-/001) C5 (/ooi) C6 (/ooi) C6 (/ooo) Acetylmethyl 58 2.

10. 11. 12. 13. 14. TS Gardner and CB Purves, /. Am. Chem. Soc, 1942, 64, 1539. CJ Malm, JJ Tanghe and BC Laird, /. Am. Chem. Soc, 1950, 72, 2674. W Goodlett, JT Dougherty and HW Patton, J. Polym. Sci. A-1, 1971, 9, 155. TK Wu, Macromolecules, 1980, 13, 74. See, for example, K Kamide and K Okajima. Polym. , 1981, 13, 127. N Shiraishi, T Katayama and T Yokota, Cell. Chem. TechnoL, 1978, 12, 429. T Miyamoto, Y Sato, T Shibata, H Inagaki and M Tanahashi, J. Polym. Sci. , 1984, 22, 2363. K Kowsaka, K Okajima and K Kamide, Polym.

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