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DENDRITIC RESINS FOR COATING APPLICATIONS
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Coating Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Coating Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Coating Technology.
1995 (English)In: Macromolecular Symposia, ISSN 1022-1360, E-ISSN 1521-3900, Vol. 98, 1159-1161 p.Article in journal (Refereed) Published
Abstract [en]

Hyperbranched, aliphatic polyesters of theoretically calculated molar masses 1 200-44 300 (2-7 generations) were synthesized in the molten state from 2,2-bis(hydroxymethyl)propionic acid (bis-MPA) (repeating unit of AB(x)-type) and 2-ethyl-2-(hydroxymethyl)-1,3-propanediol (TMP) (core molecule) using acid catalysis. The synthetic procedure was a pseudo-one-step divergent reaction. The degree of branching was found to be near 80 %. A study has also been made with respect to the theological properties of the hyperbranched aliphatic polyesters. The polymers exhibit an almost newtonian behaviour in the molten state. They also exhibit a lower increase in viscosity with molecular weight than linear polymers. The surface functionality is shown to greatly affect the viscosity of the polymers.

Place, publisher, year, edition, pages
1995. Vol. 98, 1159-1161 p.
National Category
Polymer Technologies
Identifiers
URN: urn:nbn:se:kth:diva-76075DOI: 10.1002/masy.199509801104OAI: oai:DiVA.org:kth-76075DiVA: diva2:490749
Note
35th IUPAC International Symposium on Macromolecules (MACROAKRON 94), UNIV AKRON, AKRON, OH, JUL 11-19, 1994 NR 20140805Available from: 2012-02-06 Created: 2012-02-06 Last updated: 2017-12-08Bibliographically approved

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