| 单词 | trimer |
| 释义 | trimer Chem.|ˈtraɪmə(r)|
[f. tri- + -mer.]
A compound whose molecule is composed of three molecules of monomer.
[1929Chem. Abstr. XXIII. 3213 The supernatant liquid..yielded 180, 20, 11, and 4g. of the di-, tri-, tetra- and pentamer, resp.] 1939[see tetramer]. 1952Jrnl. Physical Chem. LVI. 85 A reaction between 3 molecules of insulin of molecular weight 12,000..to give a ‘trimer’ of molecular weight 36,000..is postulated. 1969W. R. R. Park Plastics Film Technol. viii. 195 Even polystyrene films..can cause problems if they contain even relatively low percentages of residual monomers, dimers, or trimers. 1974M. C. Gerald Pharmacol. xi. 198 This compound [sc. paraldehyde] is a trimer of acetaldehyde.., that is, three molecules linked in a ring.
Hence triˈmeric a.; ˌtrimeriˈzation, the formation of a trimer from smaller molecules.
1938Jrnl. Chem. Soc. 11 Polymerisation of βγ-dimethylbutadiene by sulphuric acid dissolved in acetic acid gives dimeric, trimeric and other low-molecular products. 1954Adv. Protein Chem. IX. 419 A similar free energy change might be expected on dimerization and trimerization. 1972A. A. R. Sayigh et al. in Stille & Campbell Condensation Monomers v. 382 The value of these catalysts is limited because the same substances can act as catalysts for the trimerization of isocyanates. 1975Nature 18 Dec. 576/2 The functional significance of the trimeric nature of the molecule is obscure. |
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