SYNTHESIS AND FREE RADICAL POLYMERIZATION OF 2-OXO-3-METHYLEN E-5-PHENYL-1,4-DIOXAN

FENG Pinzhen

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SYNTHESIS AND FREE RADICAL POLYMERIZATION OF 2-OXO-3-METHYLEN E-5-PHENYL-1,4-DIOXAN

Papers | Updated：2021-06-21

- SYNTHESIS AND FREE RADICAL POLYMERIZATION OF 2-OXO-3-METHYLEN E-5-PHENYL-1,4-DIOXAN
- SYNTHESIS AND FREE RADICAL POLYMERIZATION OF 2-OXO-3-METHYLEN E-5-PHENYL-1,4-DIOXAN
- 高分子科学（英文版） 1993年11卷第2期页码：153-157
- Affiliations：
  
  1. Chemistry Department, Graduate School, Academia Sinica,Beijing,100039
  2.   Graduate School
  3.   Academia Sinica
  4.   Beijing
  5.   100039
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：1993-06-20
- Accepted：
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[1]冯品珍.SYNTHESIS AND FREE RADICAL POLYMERIZATION OF 2-OXO-3-METHYLEN E-5-PHENYL-1,4-DIOXAN[J].Chinese Journal of Polymer Science,1993,{4}(02):153-157.

FENG Pinzhen. SYNTHESIS AND FREE RADICAL POLYMERIZATION OF 2-OXO-3-METHYLEN E-5-PHENYL-1,4-DIOXAN[J]. 1993, 11(2): 153-157.
[1]冯品珍.SYNTHESIS AND FREE RADICAL POLYMERIZATION OF 2-OXO-3-METHYLEN E-5-PHENYL-1,4-DIOXAN[J].Chinese Journal of Polymer Science,1993,{4}(02):153-157. DOI：

FENG Pinzhen. SYNTHESIS AND FREE RADICAL POLYMERIZATION OF 2-OXO-3-METHYLEN E-5-PHENYL-1,4-DIOXAN[J]. 1993, 11(2): 153-157. DOI：

摘要

正

The novel cyclic monomer

2-oxo-3-methylene-5-phenyl-1

4-dioxan

was synthesized by a set of reactions. Several intermediates were prepared and characterized in order to determine the monomer structure. The presence of chiral centers in the intermediates and resulting monomer makes it complicated to separate

purify and characterize them. It is a very reactive monomer which will polymerize even at room temperature if expose to moisture and air. This monomer can undergo essentially quantitative flee radical ring opening polymerization. The driving force for ring opening is the formation of new carbonyl group and benzylic radical. The monomer and polymer structure were established by IR

H NMR

C NMR and elemental analysis or high resolution mass spectrum. The molecular weight of the resulting polymer was estimated by viscosity determination.

Abstract

The novel cyclic monomer

2-oxo-3-methylene-5-phenyl-1

4-dioxan

H NMR

C NMR and elemental analysis or high resolution mass spectrum. The molecular weight of the resulting polymer was estimated by viscosity determination.

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