Abstract

Following a method of self-seeding described by Leute and Smith, the oxyethylene-oxypropylene-oxyethylene triblock copolymers Pluronic F127 and Pluriol SC9361 have been crystallised from dilute solution under conditions which lead to a high proportion of monolayer single crystals. Electron microscopy has been used to follow the crystallisation process and to monitor changes in the crystallisation conditions. Changes in molecular weight and composition, accompanying crystallisation from dilute solution, have been detected. Comparison is made between the properties of single crystal mats and crystallised melts.

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