通过SARA ATRP设计和制造西兰-移植-多 (甲基甲酸) 热塑性塑料
Jing Pan1, Xueqing Yan1, Siyu Jia1
1Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
International journal of biological macromolecules
|January 4, 2025
概括
可再生的纤维素材料为石油塑料提供了环保的替代品. 这项研究开发了一种具有增强强度和耐水性,用于可持续包装应用的新型西兰-移植-聚 (甲基甲酸) 塑料.
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
- 生物材料是一种生物材料.
背景情况:
- 基于石油的塑料对环境和健康构成风险.
- 可再生的基纤维素材料是有前途的,但具有脆弱性和水敏感性等局限性.
- 现有的方法难以处理西兰的非热处理,并且由于高度而导致性能降低.
研究的目的:
- 开发一种新型的西兰-移植-多 (甲基甲酸) (X-g-PMMA) 共聚合物.
- 克服兰基材料在实际应用中的局限性.
- 创造一种可持续的塑料,具有改进的机械和屏障性能.
主要方法:
- 使用补充激活剂和减少剂原子转移基聚合物 (SARA ATRP) 制备X-g-PMMA共聚合物.
- 通过调节单体度和含量来控制移植链的长度和密度.
- 通过热压制造X-g-PMMA塑料的制造.
主要成果:
- 实现了星形聚合物结构,显著增强机械强度 (48.35 ± 4.11 MPa) 和模量 (23.0 ± 0.93 GPa).
- 改善了氧气屏障特性,氧气透率低 (0.389 × 10−7 cm3 m−2 day−1 Pa).
- 具有良好的耐水性和光透度,适合用于包装.
结论:
- 开发的X-g-PMMA塑料为传统塑料提供了一个可行的,可持续的替代品.
- 萨拉ATRP接种方法对于设计高性能西兰增强复合材料是有效的.
- 这种方法有可能用于需要增强材料性能的各种应用.
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