对聚合物进行计算和实验研究:光谱,热,热化学,分子性质,以及中毒性分析
Nevin Çankaya1, Mehmet Hanifi Kebiroglu2, Cengiz Soykan3
1Vocational School of Health Services, Usak University, Usak, Turkey.
Drug and chemical toxicology
|February 28, 2025
概括
这项研究分析了两个聚合物,CMA2OEM-co-DVB-co-AMPS和CMA2OEM-co-DVB-co-VIM,使用先进的计算和实验方法. 两者都显示出低毒性,尽管CMA2OEM-co-DVB-co-VIM表明口服风险略高.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 计算化学的计算化学
背景情况:
- 聚合物为各种应用提供可调节的特性.
- 了解聚合物结构-性质关系对于材料设计至关重要.
- 新型聚合物需要进行彻底的表征,包括毒性评估.
研究的目的:
- 综合分析CMA2OEM-co-DVB-co-AMPS和CMA2OEM-co-DVB-co-VIM聚合物的结构,化学和物理性能.
- 评估这些新型聚合物的*in silico*毒性概况.
- 提供有关合成聚合物的潜在应用和功能特征的见解.
主要方法:
- 使用FT-IR,NMR (1H, 13C),MEP,TCSM,ELF和ESP分析进行结构和化学表征.
- 采用*in silico*方法,包括QSAR (TEST) 和ProTox 3.0用于口服毒性预测.
- 进行了实验性热特性,以补充计算发现.
主要成果:
- 详细的结构和化学特性被阐明为两个聚合物.
- 根据TEST的预测,这两种聚合物都表现出低毒性.
- 与CMA2OEM-co-DVB-co-AMPS相比,CMA2OEM-co-DVB-co-VIM显示了潜在的更高的口服毒性风险.
结论:
- 该研究提供了对分析的聚合物特性的全面了解.
- 这些发现表明了这些聚合物的潜在应用,并考虑了它们的毒性概况.
- 进一步的研究可以利用这些见解来开发和应用有针对性的材料.
相关概念视频
Polymer Classification: Stereospecificity
2.4K
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
2.4K
Polymer Classification: Crystallinity
2.7K
Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
2.7K
Characteristics and Nomenclature of Homopolymers
2.9K
Polymers that are made up of identical monomer units are called homopolymers. Only one repeating unit is involved in the construction of the homopolymer structure. For example, as depicted in Figure 1, polypropylene is a homopolymer constituted of propylene monomers. Here, the only repeating unit in the polymer chain is propylene.
2.9K
Polymers: Molecular Weight Distribution
3.2K
For any given polymer, the weight average molecular weight (Mw) is higher than, if not equal to, the number average molecular weight (Mn). The only situation in which the weight average molecular weight and the number average molecular weight are equal is when a polymer consists only of chains with equal molecular weight. However, this never happens in a synthetic polymer, since it is difficult to control the polymerization process up to a molecular level with accuracy to a hundred percent.
3.2K
Polymers
34.6K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
34.6K
Radical Chain-Growth Polymerization: Chain Branching
1.9K
The skeletal structure of polymers synthesized via radical polymerization is always branched. For example, the polymerization of ethylene by radical polymerization results in a low-density grade of polyethylene with a heavily branched skeletal structure. Here, the radical site abstracts hydrogen from the growing chain, and the radical site shifts from the end (a primary carbon center) to anywhere within the growing chain (a secondary carbon center). Consequently, the part of the chain from the...
1.9K


