POLYIMIDOCARBONATES FROM CO2, PROPYLENE OXIDE AND ISOCYANATE

PENG Han; CHEN Li-ban

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POLYIMIDOCARBONATES FROM CO2, PROPYLENE OXIDE AND ISOCYANATE

Research Article | 更新时间：2021-03-19

- POLYIMIDOCARBONATES FROM CO2, PROPYLENE OXIDE AND ISOCYANATE
- Acta Polymerica Sinica Issue 1, Pages: 69-75(1995)
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- Published：20 February 1995，
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PENG Han, CHEN Li-ban. POLYIMIDOCARBONATES FROM CO2, PROPYLENE OXIDE AND ISOCYANATE. [J]. Acta Polymerica Sinica (1):69-75(1995)
DOI：

PENG Han, CHEN Li-ban. POLYIMIDOCARBONATES FROM CO2, PROPYLENE OXIDE AND ISOCYANATE. [J]. Acta Polymerica Sinica (1):69-75(1995) DOI：

摘要

研究了二氧化碳，环氧丙烷和异氰酸酯的共聚合反应．并考察了反应条件，异氰酸酯加入量对共聚产率及共聚物的特性粘数、分子量分布及热稳定性的影响．实验发现，引入异氰酸酯具有扩链作用，而引入二异氨酸酯则具有明显的文化交联作用．由共聚物水解试验和光谱研究结果表明，共聚反应生成的是聚亚氨碳酸酯，而不是聚氨基甲酸酯．这种聚亚氨碳酸酯比聚碳酸亚丙酯具有较高的热稳定性．

Abstract

The copolymerization of CO2

propylene oxide (PO) and isocyanates was studied. In this paper

the dependence of the yields

intrinsic viscosity and their distribution as well as thermal stability of the terpolymers on the reaction conditions and isocyanate content were described. The addition of isocyanates resulted in chain extending

branching and crosslinking. The experimental results showed that the copolymerization produced polyimidocarbonates instead of the polyurethanes. The terpolymlers were thermally more stable than the copolymer of CO2 and propyleneoxide.

关键词

二氧化碳环氧丙烷异氰酸酯三元共聚聚亚氨碳酸酯

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