ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
The conformational transition expanded coil to compact globule for linear and crosslinked poly(4-but-3-en-1-ynyl-1-methylpiperidin-4-ol), poly{1-[2-(4-hydroxy-1-methyl-4-piperidyl)ethynyl]ethylene}, (1) in aqueous and aqueous-salt solutions was investigated. The free energy of the conformational transition for linear 1. n HCl was calculated. It was shown that in aqueous solution 1 is characterized by a lower critical solution temperature (LCST). The collapse of crosslinked 1 on changing the ionization state (aqueous salt solution) and temperature was observed and is similar to a phase transition.
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1993.021941006
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