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Updated: Jun 10, 2025

A Testing Platform for Durability Studies of Polymers and Fiber-reinforced Polymer Composites under Concurrent Hygrothermo-mechanical Stimuli
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对聚氨泡的毒性测试的开发

Julie Mallouhi1,2, Enikő Hornyák-Mester1,2, Miklós Varga1,2

  • 1Institute of Chemistry, University of Miskolc, 3515 Miskolc-Egyetemváros, Hungary.

Heliyon
|October 15, 2024
PubMed
概括

由于可能释放有毒化合物,对聚氨 (PU) 泡的生态毒理学评估至关重要. 这项研究适应了使用白子和大肠杆菌的毒性测试来评估PU泡的生态毒性,在较高的NCO指数中发现了显著的影响.

关键词:
急性毒性测试试验 试验 试验生态毒理学评估 生态毒理学评估埃舍里希亚大肠杆菌 (Escherichia coli) 是一个大肠杆菌.聚氨是一种聚氨.西纳皮斯·阿尔巴 (Sinapis alba) 是一个白色的葡萄树.

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Molecular Weight of Step-Growth Polymers01:08

Molecular Weight of Step-Growth Polymers

Step growth polymerization involves bi or multifunctional monomers. Bifunctional monomers react to form linear step growth polymers, whereas multifunctional monomers react to form non-linear or branched polymers.
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...
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