Synthesis of Poly(isosorbide carbonate) via Melt Polycondensation Catalyzed by Ca/SBA-15 Solid Base

Xiao-Long Shen; Zi-Qing Wang; Qing-Yin Wang; Shao-Ying Liu; Gong-Ying Wang

doi:10.1007/s10118-018-2137-4

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Synthesis of Poly(isosorbide carbonate) via Melt Polycondensation Catalyzed by Ca/SBA-15 Solid Base

ARTICLE | Updated：2021-02-18

- Synthesis of Poly(isosorbide carbonate) via Melt Polycondensation Catalyzed by Ca/SBA-15 Solid Base
- Synthesis of Poly(isosorbide carbonate) via Melt Polycondensation Catalyzed by Ca/SBA-15 Solid Base
- Chinese Journal of Polymer Science 2018年36卷第9期页码：1027-1035
- Affiliations：
  
  a.Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
  b.University of Chinese Academy of Sciences, Beijing 100049, China
  c.Changzhou Institute of Chemistry, Changzhou 213164, China
- Author bio：
  
  wanggongying1102@126.com
- Funds：
  
  This work was financially supported by the National Key R&D Program of China (No. 2016YFB0301900) and the Science and Technology Support Program of Sichuan Province (No. 2015GZ0065).
- DOI：10.1007/s10118-018-2137-4
  中图分类号：
- 收稿：2017-12-05，
  
  修回：2018-3-22，
  
  录用：2018-3-26，
  
  网络首发：2018-04-25，
  
  纸质出版：2018-09
- Accepted：
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Xiao-Long Shen, Zi-Qing Wang, Qing-Yin Wang, 等. Synthesis of Poly(isosorbide carbonate) via Melt Polycondensation Catalyzed by Ca/SBA-15 Solid Base[J]. Chinese Journal of Polymer Science, 2018,36(9):1027-1035.

Xiao-Long Shen, Zi-Qing Wang, Qing-Yin Wang, et al. Synthesis of Poly(isosorbide carbonate) via Melt Polycondensation Catalyzed by Ca/SBA-15 Solid Base[J]. Chinese Journal of Polymer Science, 2018, 36(9): 1027-1035.
Xiao-Long Shen, Zi-Qing Wang, Qing-Yin Wang, 等. Synthesis of Poly(isosorbide carbonate) via Melt Polycondensation Catalyzed by Ca/SBA-15 Solid Base[J]. Chinese Journal of Polymer Science, 2018,36(9):1027-1035. DOI： 10.1007/s10118-018-2137-4.

Xiao-Long Shen, Zi-Qing Wang, Qing-Yin Wang, et al. Synthesis of Poly(isosorbide carbonate) via Melt Polycondensation Catalyzed by Ca/SBA-15 Solid Base[J]. Chinese Journal of Polymer Science, 2018, 36(9): 1027-1035. DOI： 10.1007/s10118-018-2137-4.

摘要

Abstract

Ca/SBA-15 solid bases with different Ca/Si atomic ratios were prepared by a one-pot route and employed as catalysts for the production of poly(isosorbide carbonate) (PIC) from diphenyl carbonate and isosorbide

via

a transesterification polymerization process. The relationship between physicochemical properties and catalytic performance for Ca/SBA-15 in this melt process was investigated by means of various characterization techniques. It was found that basic site amount and strength were responsible for this transesterification process; the weak and medium basic sites inclined to promote polycondensation reaction. It was worth noting that strong basic sites could favor the decomposition of the resultant PIC

resulting in the decrease of weight-average molecular weight (

) and yield

and the sample with Ca/Si atomic ratio of 0.4 exhibited the best catalytic performance

giving PIC with

of 4.88 × 10

g/mol and

of 169 °C at the optimal conditions. This excellent activity can be ascribed to the presence of rich basic sites and specific basic strength on the surface of 0.4Ca/SBA-15.

关键词

Keywords

references

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