合成和环开放聚合的Mono-Benzoxazines 基于2-(2-Hydroxyethoxy) 和氨酸/氨酸胺
Zongran Zhang1, Yuwei Wang1, Zhiyun Li1
1Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding, 071002, P. R. China.
Macromolecular rapid communications
|May 12, 2025
概括
合成了两种新的佐单体,并研究了它们的环开聚合 (ROP). 发现功能组降低了ROP温度,并影响了聚合途径,形成了多样化的寡合体.
科学领域:
- 聚合物化学 聚合物化学
- 有机合成 有机合成
- 材料科学 材料科学 材料科学
背景情况:
- 佐氨酸树脂是具有可调节性质的先进耐热聚合物.
- 了解环开聚合 (ROP) 机制对于控制聚合物结构和性能至关重要.
- 佐单体上的功能组可以显著影响它们的聚合行为.
研究的目的:
- 为了合成和表征两个新型的单-糖单体.
- 为了研究这些单体的环开放聚合 (ROP) 行为.
- 阐明特定功能组对ROP温度和路径的影响.
主要方法:
- 从2-(2-hydroxyethoxy) phenol和aniline/furfurylamine中用甲合成佐单体.
- 差分扫描热量计 (DSC) 用于热分析.
- 福里埃变换红外光谱 (FTIR) 和核磁共振 (NMR) 用于结构阐明.
- 电子喷雾电离质谱仪 (ESI-MS) 用于中间识别.
- 密度函数理论 (DFT) 计算用于机械验证.
主要成果:
- 成功合成了两种单-糖单体.
- 与基于氨酸的本佐克萨相比,2-氧和N-氨基基组的存在显著降低了ROP温度.
- ROP涉及副作用和zwwitterion中间体的形成.
- 观察到多个聚合途径,导致各种循环和线性寡合体.
- DFT的计算支持了拟议的ROP机制.
结论:
- 合成的佐单体由于其功能组而表现出较低的ROP温度.
- ROP机制是复杂的,涉及zwitterionic中间体,并导致多样化的聚合物结构.
- 功能组工程是一种可行的策略,可以控制佐素的聚合和特性.
关键词:
2 - - 2 - - 酸 () (酸) 是一种佐沙辛 (benzoxazine) 是一种氧化物.循环-寡合化循环-寡合化质谱测量质谱测量质谱测量质量测量质谱测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量环开开聚合的聚合方式.采用zwitterionic聚合的聚合方式更多相关视频
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