Ionic Liquid Modified Cellulose as Catalyst for CO2 Cycloaddition

Zhi-han Wang; Ying-jie Zhou; Feng Yan

doi:10.11777/j.issn1000-3304.2025-25004

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Ionic Liquid Modified Cellulose as Catalyst for CO2 Cycloaddition

更新时间：2025-03-12

- Ionic Liquid Modified Cellulose as Catalyst for CO2 Cycloaddition
- POLYMER BULLETIN Vol. 56, (2025)
- 作者机构：
  
  1. 东华大学先进纤维材料全国重点实验室材料科学与工程学院,上海,201620
  2. 苏州大学材料与化工学部, 江苏省新型功能高分子材料工程实验室,江苏,苏州,215123
- 作者简介：
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2025-25004
  CLC：
- Received：03 January 2025，
  
  Accepted：2025-02-26，
  
  Published：2025
- 稿件说明：
移动端阅览
Zhi-han Wang, Ying-jie Zhou, Feng Yan. Ionic Liquid Modified Cellulose as Catalyst for CO2 Cycloaddition[J/OL]. Polymer bulletin, 2025, 56.
DOI：

Zhi-han Wang, Ying-jie Zhou, Feng Yan. Ionic Liquid Modified Cellulose as Catalyst for CO2 Cycloaddition[J/OL]. Polymer bulletin, 2025, 56. DOI： 10.11777/j.issn1000-3304.2025-25004.

摘要

二氧化碳 (CO2) 与环氧化物的环加成反应被认为是CO2资源化利用最具前景的方法之一. 然而，环加成反应的苛刻条件仍然是亟待解决的挑战. 通过乙烯基咪唑溴盐 ([VPIM]Br) 改性烯丙基纤维素醚 (AHP-cellulose)，成功制备了离子液体担载于纤维素的多孔催化剂 (PPCIL)，并应用于CO2的环加成催化反应. 研究发现，在0.1 MPa的CO2压力下，PPCIL即可对多种环氧底物展示出较好的环加成催化活性. 其中，在80 °C，0.1 MPa的温和条件下，由CO2和环氧氯丙烷反应得到的氯丙烯碳酸酯的产率和选择性均可达到99%. 通过多种表征技术揭示了PPCIL能够吸附CO2并活化环氧底物，有效地催化了环加成反应，并提出了可能的催化机理. 此外，PPCIL循环使用5次后，仍能保持高的催化活性，其产率为88.5%，选择性为98%.

Abstract

Cycloaddition of carbon dioxide (CO2) and epoxides can boast 100% atomic economy

and it is considered an up-and-coming method for CO2 utilization. However

the need for harsh reaction conditions presents a significant challenge. This study addresses this issue by successfully preparing the cellulose-supported ionic liquid as a porous catalyst (PPCIL) via the reaction of allyl cellulose ether (AHP-cellulose) and vinyl imidazolium bromide ([VPIM]Br). The catalytic activity of PPCIL was thoroughly investigated. It was found that end epoxides with small-sized substituents such as epichlorohydrin

epibromohydrin

and propylene oxide

can be completely converted to corresponding carbonates over PPCIL at 80 °C and 0.1 MPa. When the temperature rose to 100 °C

PPCIL also revealed good catalytic activity towards end epoxides with larger size such as allyl glycidyl ether and styrene oxide. PPCIL can effectively activate the CO2 and epoxy substrates

and potential reaction mechanisms were proposed. Notably

PPCIL demonstrated high catalytic activity even after being recycled for five times

maintaining a yield of 88.5% and a selectivity of 98%. In summary

this study offers an effective strategy for heterogenizing ionic liquids for catalytic activation CO2 to cyclic carbonates under mild conditions.

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