由聚乙烯 (Pyrolidone) 和聚乙烯 (Vinyl alcohol) 组成的冷干燥交联离子凝:合成,表征和可降解性表现
Miracle Obaleye1, Doğa Kavaz1, Joshua Olaifa1
1Department of Bioengineering, Faculty of Engineering, Cyprus International University, Haspolat, Lefkoşa, Northern Cyprus.
Acta of bioengineering and biomechanics
|June 21, 2023
概括
这项研究使用冷干燥制备了聚乙烯 (pyrrolidone) /聚乙烯 (酒精) 水凝. 增加的聚乙烯 (pyrrolidone) 含量提高了孔隙性和膨胀率,为应用提供了可调节的特性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
背景情况:
- 聚乙烯 (PVP) 和聚乙烯 (PVA) 是广泛使用的合成聚合物,具有宝贵的特性,特别是在医疗应用中.
- 它们的广泛使用源于卓越的属性和一个世纪的全球制造.
研究的目的:
- 通过冷干燥来制备聚乙烯 (PVP/PVA) 水凝.
- 描述合成的水凝的形态,化学成分和物理性质.
- 为了评估PVP/PVA水凝的体外生物降解性.
主要方法:
- 使用冷干燥技术制备的水凝制剂.
- 通过扫描电子显微镜 (SEM) 和富里埃变换红外光谱 (FTIR) 来分析形态和化学成分.
- 使用X射线衍射 (XRD) 进行表面密度,多孔度,膨胀率和结晶度的表征.
主要成果:
- 增加PVP含量显著增加了水凝的多孔性,从45%增加到81.8%.
- 水凝密度也随着PVP含量增加而增加.
- 随着PVP含量增加,胀率增加,在PP4中达到95.58%,胀时间快4分钟.
结论:
- 聚乙烯 (poly ((vinyl pyrrolidone)) 在异型PVP/PVA水凝中充当网络和性能调节剂.
- 这项研究提供了一种方法来控制基于PVA的异构性水凝的形态和特性.
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