MONOMOLECULAR FILMS OF COPOLYMERS OF OXYETHYLENE AND OXYPROPYLENE, POLYPROPYLENE GLYCOL AND THEIR BINARY MIXTURES
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MONOMOLECULAR FILMS OF COPOLYMERS OF OXYETHYLENE AND OXYPROPYLENE, POLYPROPYLENE GLYCOL AND THEIR BINARY MIXTURES
MONOMOLECULAR FILMS OF COPOLYMERS OF OXYETHYLENE AND OXYPROPYLENE, POLYPROPYLENE GLYCOL AND THEIR BINARY MIXTURES
高分子科学(英文版)1989年7卷第2期 页码:119-123
Affiliations:
1. Department of Chemistry and Institute of Physical Chemistry, Peking University,Beijing
2. Peking University
3. Beijing
Author bio:
Funds:
DOI:
中图分类号:
纸质出版:1989-06-20
Accepted:
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[1]李外郎,丁法祥,顾惕人.MONOMOLECULAR FILMS OF COPOLYMERS OF OXYETHYLENE AND OXYPROPYLENE, POLYPROPYLENE GLYCOL AND THEIR BINARY MIXTURES[J].Chinese Journal of Polymer Science,1989,{4}(02):119-123.
LI Wailang, DING Faxiang, GU Tiren. MONOMOLECULAR FILMS OF COPOLYMERS OF OXYETHYLENE AND OXYPROPYLENE, POLYPROPYLENE GLYCOL AND THEIR BINARY MIXTURES[J]. 1989, 7(2): 119-123.
[1]李外郎,丁法祥,顾惕人.MONOMOLECULAR FILMS OF COPOLYMERS OF OXYETHYLENE AND OXYPROPYLENE, POLYPROPYLENE GLYCOL AND THEIR BINARY MIXTURES[J].Chinese Journal of Polymer Science,1989,{4}(02):119-123.DOI:
LI Wailang, DING Faxiang, GU Tiren. MONOMOLECULAR FILMS OF COPOLYMERS OF OXYETHYLENE AND OXYPROPYLENE, POLYPROPYLENE GLYCOL AND THEIR BINARY MIXTURES[J]. 1989, 7(2): 119-123.DOI:
MONOMOLECULAR FILMS OF COPOLYMERS OF OXYETHYLENE AND OXYPROPYLENE, POLYPROPYLENE GLYCOL AND THEIR BINARY MIXTURES
<正> The behaviour of monolayers of copolymers of oxyethylene and oxypropylene (UH29 and UH68)
polypropylene glycol (UHPPG)and their binary mixtures on air-water interface has been investigated carefully on compression-expansion cycles. The first compression isotherm is approximately an equilibrium one. In the UHPPG-UH29 and UHPPG-UH68 systems
the calculated average π-a curves based on simple additivity of the two individual components coincide with the experimental results reasonably well. It is suggested that the two components are miscible and form near-ideal solution at the air-water interface. The compression-expansion cycle experiments shows some degree of hysteresis. The order of degree of hysteresis for individual components is UH68>UH29>UHPPG. The explanation for the hysteresis is proposed.
Abstract
The behaviour of monolayers of copolymers of oxyethylene and oxypropylene (UH29 and UH68)
polypropylene glycol (UHPPG)and their binary mixtures on air-water interface has been investigated carefully on compression-expansion cycles. The first compression isotherm is approximately an equilibrium one. In the UHPPG-UH29 and UHPPG-UH68 systems
the calculated average π-a curves based on simple additivity of the two individual components coincide with the experimental results reasonably well. It is suggested that the two components are miscible and form near-ideal solution at the air-water interface. The compression-expansion cycle experiments shows some degree of hysteresis. The order of degree of hysteresis for individual components is UH68>UH29>UHPPG. The explanation for the hysteresis is proposed.
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