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Lower Critical Solution Temperatures, Part II Polymethylene in binary n-alkane solvents

✍ Scribed by Kodama, Yoshinori ;Swinton, Findlay L.

Book ID
104527008
Publisher
Wiley (John Wiley & Sons)
Year
1978
Tongue
English
Weight
277 KB
Volume
10
Category
Article
ISSN
0007-1641

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✦ Synopsis

Abstract

The lower critical solution temperatures (LCST) were measured visually for linear polymethylene in twelve different binary solvents composed of various n‐alkane pairs ranging from n‐hexane to n‐hexatriacontane (C~36~). A reasonable correlation is found between the experimental LCST's of these pseud o‐ternary systems and the gas‐liquid critical temperatures of the binary solvents.

Full thermodynamic data are available for only one of these systems, polymethylene/ n‐hexane/n‐octane and it is found that one version of the Flory theory predicts the experimental LCST's for this mixture with acceptable accuracy. No adjustable parameters are required.

📜 SIMILAR VOLUMES

Lower Critical Solution Temperatures, Pa
Lower Critical Solution Temperatures, Part I Polymethylene in n-alkanes
✍ Kodama, Yashinori ;Swinton, Findlay L. 📂 Article 📅 1978 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 800 KB

## Abstract Lower critical solution temperatures (LCST's) of three linear polyethylenes of differing molecular weights were measured visually in various n‐alkanes ranging from n‐hexane to n‐tridecane. The LCST observed increases with decreasing molecular weight of polyethyline and with increasing t