| 单词 |
quaternize |
| 释义 |
quaternize, v. Chem.|ˈkwɒtənaɪz|
[f. quaternary a. + -ize.]
a. trans. To convert (a tertiary compound, esp. an amine, or an atom) into a quaternary form.
b. intr. To undergo this process.
1951Jrnl. Polymer Sci. VI. 513 This observation suggests that some of the reluctance of 2-pyridyl ethers to quaternize may also be due to steric effects. Ibid., We may consider the butyl salt to be a chain polymer with approximately every other pyridine quaternized. 1965Jrnl. Chem. Soc. 6831 A specimen obtained on quaternising (-)-6-methoxytropan-3α-ol. 1969Encycl. Polymer Sci. & Technol. XI. 333 By copolymerizing vinylpyridine with styrene, quaternizing the nitrogen atoms in the pyridine rings of the resulting copolymer, and..reacting with Li+TCNQ- and TCNQ a product is obtained that can be cast from solution into a film with a conductivity of 10-3 ohm-1-cm-1. 1970J. Williamson in H. W. Mulligan Afr. Trypanosomiases vii. 167 The dimethylated diamino dye, Acridinium Yellow, in which the ring N atom was quaternized. 1973Nature 27 Apr. 605/2 A similar reaction of nicotinamides quaternized with alkyl groups was also..investigated.
So ˈquaternized ppl. a. Also quaterniˈzation, the process of quaternizing a compound or atom.
1949Jrnl. Polymer Sci. IV. 103 An excess of butyl bromide over pyridine content was always used, so that the irreversible quaternization reaction would prevail. 1951Ibid. VI. 523 Quaternized copolymers of styrene and 4-vinylpyridine. 1965Phillips & Williams Inorg. Chem. I. xv. 556 The quaternization reaction EtI + Et3N→ [Et4N]+I- is, at 100°, 80 times faster in benzene..than in hexane. 1966Trans. Amer. Soc. Artific. Internal Organs XII. 151 Simple contact of such a quaternized surface with aqueous sodium heparinate is sufficient to yield a heparinized surface. 1976Nature 15 July 221/2 Quaternisation of the nitrogen atom generally caused a marked decrease in ixodicidal activity. |
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单词 Quaternitarian 释义 Quaternitarian rare.[f. next, after uni-, trinitarian.]One who be......