Folding-driven reversible polymerization of oligo(m-phenylene ethynylene) imines: Solvent and starter sequence studies

Macromolecules

Volumn 36, Issue 8, 2003, Pages 2712-2720

  Zhao, Dahui ^a   Moore, Jeffrey S ^a  

^a UNIVERSITY OF ILLINOIS AT URBANA CHAMPAIGN   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

POLAR SOLVENTS;

CONFORMATIONS; FREE ENERGY; MOLECULAR WEIGHT; POLYCONDENSATION;

OLIGOMERS;

EID: 0037461404     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma034159i     Document Type: Article

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35. w of 8.
36. Equilibrium may have been reached in methyl acetate and ethyl acetate in less than 19 weeks, but the product was not monitored day-to-day. The equilibration time and the molecular weight were also found to be sensitive to the amount of water introduced into the system; longer reaction times corresponding to higher molecular weights were necessary for reactions in solvents that had been rigorously dried.
37. w observed in acetonitrile compared to methyl acetate and ethyl acetate is mostly likely the result of a very slow approach to equilibrium in this solvent.