| 释义 |
polyaddition Chem.|pɒlɪəˈdɪʃən|
[a. G. polyaddition (O. Bayer 1947, in Angewandte Chem. A. LIX. 263/2), f. poly- poly- + addition addition.]
An addition reaction between two compounds which yields a polymeric product.
1948Chem. Abstr. XLII. 6160 (heading) The diisocyanate polyaddition process. 1970E. L. McCaffery Lab. Prep. for Macromolecular Chem. 58 Condensation polymerization..may take place either by a polycondensation reaction, whereby low molecular-weight by-product is formed along with the polymer,..or by a polyaddition reaction in which the total reactants are incorporated in the polymer chain, as is typified by polyurethane formation. 1973K. J. Saunders Org. Polymer Chem. i. 23 Some authors..apply the term rearrangement polymerization (or, sometimes, polyaddition) to polymerization which proceeds through the interaction of functional groups without elimination of a small molecule. |