| 词汇 | polymerization |
| 释义 | polymerization noun[ U ] chemistry specializeduk /ˌpɒl.ɪ.mər.aɪˈzeɪ.ʃən//pəlˌɪ.mər.aɪˈzeɪ.ʃən/ us /pəlˌɪ.mɚ.əˈzeɪ.ʃən/ us /ˌpɑː.lɪ.mɚ.əˈzeɪ.ʃən/ a chemical reaction in which many small molecules join to make a polymer聚合反应 Physical & chemical processes absorbable absorptive absorptive capacity absorptivity acidification endothermic reaction excitability excitation excite exergonic exothermic exothermic reaction impregnate reabsorb react reboil recondense redox scald vaporize polymerization | American Dictionarypolymerization noun[ U ] us/pəˌlɪm·ər·əˈzeɪ·ʃən, ˌpɑl·ə·mər-/ chemistry a chemical reaction in which many small molecules join to make a polymer Examples of polymerizationpolymerization Polymerization of non-filamentous actin into microfilaments is an important process for porcine oocyte maturation and early embryo development. The polymerization reaction occurred by taking advantage of the high polarity of molten urea as well as its dehydrating ability. Moreover, we have added to this scenario the possibility that the fluid, while penetrating, undergoes polymerization (curing) thus changing its thermal and hydraulic coefficients. In other words, the polymerization dynamics of the longer polymers is enslaved by that of the shorter ones. As in polymerization, propagation tends to maintain a constant number of active centers. The important point is that the polymerization equations show bifurcation behavior where f is the control parameter and g is the control parameter. Following common convention, we use the term polymerization somewhat loosely. In this paper the reactions correspond to the auto-catalytic polymerization which corresponds to a local instability with a given linear growth rate. Thus, despite ample evidence suggestive of prebiotic polymerization, the evidence argues against cyclic copying in the absence of a further driving force. To this end, we have borrowed the concept of active centers from the phenomenon of polymerization. A variety of molecular products are anticipated, formed from molecular dissociation, dimerization, polymerization, and addition and abstraction reactions. Perhaps, one of the most curious properties of the model is the wave-like evolution of the polymer length after the initialization of the polymerization process. The new feature we consider in this model concerns curing: that is to say, the non-isothermal polymerization process accompanying the flow of the injected resin. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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