Well-defined polycaprolactone precursors for low surface-energy polyurethane films

T. Dikic, W. Ming, P.C. Thüne, R.A.T.M. Benthem, van, G. With, de

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Abstract

For the purpose of developing model coating systems, it is important to use well-defined coating precursors. In this work, polyester oligomers were synthesized by controlled ring-opening polymerization of -caprolactone and 4-tert-butyl--caprolactone via an activated monomer mechanism. These well-defined oligomers, including 3-armed hydroxyl-functionalized polyesters and perfluoroalkyl-end-capped linear polyesters, have been obtained with controlled functionality and low-molecular weight polydispersity and without the formation of cyclic structures, as demonstrated by MALDI-ToF MS analyses. The polymer architecture and functionality can be tuned by using different initiating alcohols. These oligomers have been used as precursors to prepare model low surface-energy polyurethane coatings. Upon the addition of about 1 wt % of fluorine in the polyurethane films, the advancing contact angles for water and hexadecane have been increased to 105° and 78°, respectively; the surface enrichment of fluorinated species has been confirmed by X-ray photoelectron spectroscopy.
Original languageEnglish
Pages (from-to)218-227
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume46
Issue number1
DOIs
Publication statusPublished - 2008

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Polycaprolactone
Polyesters
Polyurethanes
Oligomers
Interfacial energy
Coatings
Fluorine
Ring opening polymerization
Polydispersity
Hydroxyl Radical
Contact angle
Polymers
Alcohols
X ray photoelectron spectroscopy
Monomers
Molecular weight
Water
polycaprolactone
caprolactone

Cite this

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title = "Well-defined polycaprolactone precursors for low surface-energy polyurethane films",
abstract = "For the purpose of developing model coating systems, it is important to use well-defined coating precursors. In this work, polyester oligomers were synthesized by controlled ring-opening polymerization of -caprolactone and 4-tert-butyl--caprolactone via an activated monomer mechanism. These well-defined oligomers, including 3-armed hydroxyl-functionalized polyesters and perfluoroalkyl-end-capped linear polyesters, have been obtained with controlled functionality and low-molecular weight polydispersity and without the formation of cyclic structures, as demonstrated by MALDI-ToF MS analyses. The polymer architecture and functionality can be tuned by using different initiating alcohols. These oligomers have been used as precursors to prepare model low surface-energy polyurethane coatings. Upon the addition of about 1 wt {\%} of fluorine in the polyurethane films, the advancing contact angles for water and hexadecane have been increased to 105° and 78°, respectively; the surface enrichment of fluorinated species has been confirmed by X-ray photoelectron spectroscopy.",
author = "T. Dikic and W. Ming and P.C. Th{\"u}ne and {Benthem, van}, R.A.T.M. and {With, de}, G.",
year = "2008",
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language = "English",
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journal = "Journal of Polymer Science, Part A: Polymer Chemistry",
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Well-defined polycaprolactone precursors for low surface-energy polyurethane films. / Dikic, T.; Ming, W.; Thüne, P.C.; Benthem, van, R.A.T.M.; With, de, G.

In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 46, No. 1, 2008, p. 218-227.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Well-defined polycaprolactone precursors for low surface-energy polyurethane films

AU - Dikic, T.

AU - Ming, W.

AU - Thüne, P.C.

AU - Benthem, van, R.A.T.M.

AU - With, de, G.

PY - 2008

Y1 - 2008

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AB - For the purpose of developing model coating systems, it is important to use well-defined coating precursors. In this work, polyester oligomers were synthesized by controlled ring-opening polymerization of -caprolactone and 4-tert-butyl--caprolactone via an activated monomer mechanism. These well-defined oligomers, including 3-armed hydroxyl-functionalized polyesters and perfluoroalkyl-end-capped linear polyesters, have been obtained with controlled functionality and low-molecular weight polydispersity and without the formation of cyclic structures, as demonstrated by MALDI-ToF MS analyses. The polymer architecture and functionality can be tuned by using different initiating alcohols. These oligomers have been used as precursors to prepare model low surface-energy polyurethane coatings. Upon the addition of about 1 wt % of fluorine in the polyurethane films, the advancing contact angles for water and hexadecane have been increased to 105° and 78°, respectively; the surface enrichment of fluorinated species has been confirmed by X-ray photoelectron spectroscopy.

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