Room Temperature Polyesterification

Macromolecules

Volumn 23, Issue 1, 1990, Pages 65-70

  Moore, Jeffrey S ^a   Stupp, Samuel I ^a  

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

Author keywords

[No Author keywords available]

Indexed keywords

ACIDS--PROCESSING; CHEMICAL REACTIONS--ESTERIFICATION; MONOMERS--POLYMERIZATION; PHENOLS--PROCESSING; POLYMERS--SYNTHESIS;

CARBOXYLIC ACID; CRESOL; POLYCONDENSATION; ROOM TEMPERATURE POLYESTERIFICATION; TOLUENESULFONIC ACID; TOLUIC ACID;

POLYMERIZATION;

EID: 0025702719     PISSN: 00249297     EISSN: 15205835     Source Type: Journal    
DOI: 10.1021/ma00203a013     Document Type: Article

References (24)

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5. As an example, see: Moore, J. S.; Stupp, S. I. Macromolecules 1987, 20, 273.
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13. For reviews, see:
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17. For a recent review on the chemistry of DMAP, see: Scriven, E. F. V. Chem. Soc. Rev. 1983, 12, 129.
18. In some cases it is possible to perform the polymerization of insoluble hydroxy acids without the addition of pyridine. Under these conditions, the initial suspension becomes homogeneous shortly after the addition of the carbodiimide. Since the reaction is most successful in methylene chloride without any added cosolvent, addition of pyridine should be reserved for cases in which the monomer and/or polymer are completely insoluble in methylene chloride.
19. Diisopropylurea can often be observed as a white precipitate within the first hour of the reaction.
20. If traces of diisopropylurea remain in the final product, the polymer can be dissolved in a suitable solvent and reprecipitated into 25-50 volumes of methanol.
21. An authentic sample of the acylurea of p-toluic acid was prepared as shown below
22. DeTar, D. F.; Silverstein, R. J. Am. Chem. Soc. 1966,88,1013.
23. Moore, J. S.; Stupp, S. I. Low Symmetry Macromolecules. I. Synthesis. Submitted for publication.
24. Bhama, S.; Stupp, S. I., unpublished results from this laboratory.