从功能化向日种子油中合成生物基聚氨.
Csilla Lakatos1, Katalin Czifrák1, Csaba Cserháti2
1Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary.
International journal of molecular sciences
|December 11, 2025
概括
生物基聚氨 (PU) 由向日油聚合物合成,产生柔性和坚固的薄膜和支架. 这些可持续材料对先进的生物医学应用有很大的希望.
科学领域:
- 聚合物科学 聚合物科学
- 生物材料工程 生物材料工程
- 可持续化学 可持续化学
背景情况:
- 聚氨 (PU) 是多功能聚合物,在生物医学系统中具有应用.
- 出于环境和健康原因,开发可持续的替代石油基PU至关重要.
- 植物油提供可再生原料,用于合成生物基聚醇.
研究的目的:
- 合成生物基聚氨 (PUs) 使用可再生聚醇从日种子油.
- 评估这些PU的物理化学和机械性能,以便在生物医学应用中潜在使用.
- 探索从这些生物基PU制造多孔支架的制造.
主要方法:
- 通过糖醇转化 (GM) 和环氧化 (EPO) 制备了两种不同的油聚醇.
- 在PTMEG和/或PEG的存在下,聚醇与1,6-甲基二酸 (HDI) 反应.
- 材料的表征包括MALDI-TOF MS,NMR光谱,ATR-FTIR,拉伸测试,DSC,DMA和SEM. 材料的表征包括MALDI-TOF MS,NMR光谱,ATR-FTIR,拉伸测试,DSC,DMA和SEM.
- 盐技术用于脚手架的制造.
主要成果:
- 成功合成和表征功能化的聚醇前体.
- 所得到的PU薄膜显示出出色的弹性 (885%) 和机械强度 (23MPa).
- 交叉连接密度有助于卓越的机械性能,粘弹性行为以Kohlrausch-Williams-Watts方程为模型.
- 观察了应变硬化行为,并以数学模型进行了建模.
- 通过盐液成功制造出有孔的脚手架.
结论:
- 花油是生产功能性聚氨的多功能原料.
- 合成的生物基PU具有可调节的机械性能,适用于先进的聚合物系统.
- 这些材料具有开发灵活,坚固和可持续的生物医学膜和支架的巨大潜力.
相关概念视频
Olefin Metathesis Polymerization: Overview
2.5K
Recently, the development of olefin metathesis polymerization advanced the field of polymer synthesis. Simply put, the reorganization of substituents on their double bonds between two olefins in the presence of a catalyst is known as the olefin metathesis reaction. The use of metathesis reaction for polymer synthesis is called olefin metathesis polymerization.
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists of a...
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists of a...
2.5K
Types of Step-Growth Polymers: Polyesters
2.5K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
2.5K
Step-Growth Polymerization: Overview
4.2K
Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are reactive, most of the monomers are consumed at the early stages of the reaction to form small chains of reactive oligomers, which then combine to form long polymer chains in the late stages. Hence, the reaction has to proceed for a long time to achieve high molecular weight polymers.
Many natural and synthetic polymers are produced by...
Many natural and synthetic polymers are produced by...
4.2K


