Gel effect
Mandarin:
凝胶效应 (níng jiāo xiào yìng)
凝胶效应 (níng jiāo xiào yìng)
Explanation in English Language (EN):
The gel effect, also known as the Trommsdorff-Norrish effect, is a phenomenon observed in chain-growth polymerization where the rate of polymerization increases as the reaction progresses. This occurs due to the increasing viscosity of the reaction mixture as the polymer chains grow longer and become more entangled. The higher viscosity hinders termination reactions, leading to a buildup of reactive species and an acceleration of the polymerization rate. The gel effect can be significant in bulk polymerization and can lead to uncontrolled exothermic reactions if not properly managed.
The gel effect, also known as the Trommsdorff-Norrish effect, is a phenomenon observed in chain-growth polymerization where the rate of polymerization increases as the reaction progresses. This occurs due to the increasing viscosity of the reaction mixture as the polymer chains grow longer and become more entangled. The higher viscosity hinders termination reactions, leading to a buildup of reactive species and an acceleration of the polymerization rate. The gel effect can be significant in bulk polymerization and can lead to uncontrolled exothermic reactions if not properly managed.
Explanation in Mandarin (ZH):
凝胶效应，也称为 Trommsdorff-Norrish 效应，是在链增长聚合中观察到的一种现象，其中聚合速率随着反应的进行而增加。发生这种情况是由于随着聚合物链变长和变得更加缠结，反应混合物的粘度增加。较高的粘度阻碍了终止反应，导致活性物质的积累和聚合速率的加速。凝胶效应在本体聚合中可能很显着，如果管理不当，可能导致不受控制的放热反应。
凝胶效应，也称为 Trommsdorff-Norrish 效应，是在链增长聚合中观察到的一种现象，其中聚合速率随着反应的进行而增加。发生这种情况是由于随着聚合物链变长和变得更加缠结，反应混合物的粘度增加。较高的粘度阻碍了终止反应，导致活性物质的积累和聚合速率的加速。凝胶效应在本体聚合中可能很显着，如果管理不当，可能导致不受控制的放热反应。
International Phonetic Alphabet (IPA)
- Definition: A standardized system of symbols used to represent the sounds of spoken language.
- Purpose: Helps linguists, language learners, and educators accurately describe pronunciation across languages.
- Example: The word “hello” in British English is transcribed as /həˈləʊ/ in IPA.
- Definition: A standardized system of symbols used to represent the sounds of spoken language.
- Purpose: Helps linguists, language learners, and educators accurately describe pronunciation across languages.
- Example: The word “hello” in British English is transcribed as /həˈləʊ/ in IPA.