通过有机基的碳化物和环氧化物的封闭系统单反应产生的多乙烯
Cheng-Jian Zhang1, Tian-Cheng Zhu2, Xiao-Han Cao1
1MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , China.
Journal of the American Chemical Society
|March 22, 2019
概括
这项研究提出了一种简单的无金属合成聚乙烯的方法.单反应使用碳酸 (COS) 和环氧化物,为这些有价值的含硫聚合物提供了方便的途径.
科学领域:
- 聚合物化学
- 材料科学
- 有机合成
背景情况:
- 聚乙烯是可取的含硫聚合物.
- 在聚合物化学中,高效合成聚乙烯仍然是一个重大挑战.
研究的目的:
- 开发一种简单,容易,无金属的合成聚乙烯的方法.
- 探索使用碳酸 (COS) 和环氧化物的一反应.
主要方法:
- 一个封闭系统,一个反应,结合碳酸 (COS) 和环氧化物.
- 使用有机基作为序列合和脱碳环开放聚合 (ROP) 的催化剂和启动剂.
- 使用DFT研究来阐明反应机制和硫原子转移.
主要成果:
- 通过一种新的途径成功合成聚乙烯.
- 该反应涉及COS与环氧化物的合,随后是中间二氧化碳的ROP,释放CO2.
- 由区域选择性反应和二氧化碳释放所驱动的氧/硫交换已被证实,通过DFT证实.
- 使用现有化学物质实现无金属合成.
结论:
- 已经建立了一个简单且无金属的路径.
- 开发的方法可以合成多种多结构.
- 这种方法为生产有价值的含硫聚合物提供了切实可行的替代方案.
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