Tacticity - Wikipedia
Tacticity (from Greek: τακτικός, romanized: taktikos, "relating to arrangement or order") is the relative stereochemistry of adjacent chiral centers within a macromolecule. [1] . The practical significance of tacticity rests on the effects on the physical properties of the polymer.
atactic是什么意思_atactic的翻译_音标_读音_用法_例句_爱词霸在 …
英 [eɪ'tæktɪk] 美 [eɪ'tæktɪk] 释义. adj. 不规则的，协同不能的，不合语法的. 实用场景例句. 全部. Polyacetaldehyde may exist in atactic, syndiotactic and isotactic forms. 聚乙醛可以以无规, 间同和全同形式存在. 辞典例句. Those with a random distribution of configuration are termed atactic. 构型无规分布的聚合物叫无规聚合物. 辞典例句. Polyacetadehyde may exist in atactic, syndiotactic and isotactic forms.
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29.5: Correlation of Polymer Properties with Structure
Polychloroethene (polyvinyl chloride), as usually prepared, is atactic and not very crystalline. It is relatively brittle and glassy. The properties of polyvinyl chloride can be improved by copolymerization, as with ethenyl ethanoate (vinyl acetate), which produces a softer polymer ("Vinylite") with better molding properties.
Atactic Definition & Meaning - Merriam-Webster
The meaning of ATACTIC is of, relating to, or being a polymer exhibiting no stereochemical regularity of structure. How to use atactic in a sentence.
Ataxia - Symptoms and causes - Mayo Clinic
2024年1月30日 · Ataxia describes poor muscle control that causes clumsy movements. It can affect walking and balance, hand coordination, speech and swallowing, and eye movements. Ataxia usually results from damage to the part of the brain called the cerebellum or its connections. The cerebellum controls muscle coordination.
聚合物 - 维基百科，自由的百科全书
无规聚合物（atactic polymer）是指特定的官能基沒有規律出現; 等规聚合物（isotactic polymer）是指特定的官能基總是在主鏈的同一側出現; 间规聚合物（syndiotactic polymer）是指特定的官能基會在主鏈的兩側交換出現
Stereochemical enhancement of polymer properties - Nature
2019年7月30日 · The modulation of stereochemistry for polystyrene–polybutadiene (SB)-based polymers is well described for both the polybutadiene segment (cisor trans) and the styrenic section (tacticity), but ...
ATACTIC 释义 | 柯林斯英语词典 - Collins Online Dictionary
atactic in British English. (eɪˈtæktɪk ) 形容词. 1. chemistry. (of a polymer) having random sequence of the stereochemical arrangement of groups on carbon atoms in the chain; not stereospecific. 2. pathology. relating to or displaying ataxia. Collins English Dictionary.
Atactic Polymer - an overview | ScienceDirect Topics
An atactic polymer is defined as a type of polymer that forms from radical chain polymerization and contains branches resulting from hydrogen abstraction processes. Unlike isotactic and syndiotactic polymers, atactic polymers do not have a regular structure, leading to a lack of crystallinity and lower melting points.