Low surface energy polymeric films from novel fluorinated blocked isocyanates

L. Ravenstein, van, W. Ming, R.D. van de Grampel, R. Linde, van der, G. With, de, J.A. Loontjens, P.C. Thuene, J.W. Niemantsverdriet

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Polymeric films with surface energies as low as 10 mN/m were prepd. from a mixt. of a hydroxyl-end-capped solventless liq. oligoester (SLO), a blocked polyisocyanate, and a novel fluorinated blocked isocyanate (FB-NCO). In the well-defined FB-NCO the ratio of the fluorinated tail and the caprolactam blocking group was 1:1. Low amts. of fluorine were needed for obtaining very low surface energies via the surface segregation of fluorinated species. The low wettability of films was manifested by high contact angles of water (125 Deg) and hexadecane (80 Deg), by adding less than 5 wt % of fluorine. The pronounced enrichment of fluorinated species at the surface was verified by XPS. The curing temp. not only demonstrated a dramatic effect on the reaction rate but also showed a significant effect on the wettability of the films. A higher curing temp. led to a less significant surface enrichment of fluorine, due to the fast immobilization of the cross-linked networks. The mixts. had excellent stability below the deblocking temp. (.apprx. 140 DegC) of blocked isocyanates, while the well-defined FB-NCO enabled an easy adjustment of fluorine concn., both making this approach practically attractive and efficient to prep. low surface energy films by using small amts. of fluorine. [on SciFinder (R)]
Original languageEnglish
Title of host publicationAbstracts of Papers, 225th ACS National Meeting, New Orleans, LA, United States, March 23-27, 2003
Place of PublicationWashington, D. C
PublisherAmerican Chemical Society
PagesPMSE-162
Publication statusPublished - 2003
Event225th ACS National Meeting - New Orleans, United States
Duration: 23 Mar 200327 Mar 2003

Conference

Conference225th ACS National Meeting
CountryUnited States
CityNew Orleans
Period23/03/0327/03/03

Fingerprint

Isocyanates
Fluorine
Interfacial energy
Polymer films
Curing
Wetting
Caprolactam
Surface segregation
Polyurethanes
Hydroxyl Radical
Contact angle
Reaction rates
X ray photoelectron spectroscopy
Water

Cite this

Ravenstein, van, L., Ming, W., van de Grampel, R. D., Linde, van der, R., With, de, G., Loontjens, J. A., ... Niemantsverdriet, J. W. (2003). Low surface energy polymeric films from novel fluorinated blocked isocyanates. In Abstracts of Papers, 225th ACS National Meeting, New Orleans, LA, United States, March 23-27, 2003 (pp. PMSE-162). Washington, D. C: American Chemical Society.
Ravenstein, van, L. ; Ming, W. ; van de Grampel, R.D. ; Linde, van der, R. ; With, de, G. ; Loontjens, J.A. ; Thuene, P.C. ; Niemantsverdriet, J.W. / Low surface energy polymeric films from novel fluorinated blocked isocyanates. Abstracts of Papers, 225th ACS National Meeting, New Orleans, LA, United States, March 23-27, 2003. Washington, D. C : American Chemical Society, 2003. pp. PMSE-162
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title = "Low surface energy polymeric films from novel fluorinated blocked isocyanates",
abstract = "Polymeric films with surface energies as low as 10 mN/m were prepd. from a mixt. of a hydroxyl-end-capped solventless liq. oligoester (SLO), a blocked polyisocyanate, and a novel fluorinated blocked isocyanate (FB-NCO). In the well-defined FB-NCO the ratio of the fluorinated tail and the caprolactam blocking group was 1:1. Low amts. of fluorine were needed for obtaining very low surface energies via the surface segregation of fluorinated species. The low wettability of films was manifested by high contact angles of water (125 Deg) and hexadecane (80 Deg), by adding less than 5 wt {\%} of fluorine. The pronounced enrichment of fluorinated species at the surface was verified by XPS. The curing temp. not only demonstrated a dramatic effect on the reaction rate but also showed a significant effect on the wettability of the films. A higher curing temp. led to a less significant surface enrichment of fluorine, due to the fast immobilization of the cross-linked networks. The mixts. had excellent stability below the deblocking temp. (.apprx. 140 DegC) of blocked isocyanates, while the well-defined FB-NCO enabled an easy adjustment of fluorine concn., both making this approach practically attractive and efficient to prep. low surface energy films by using small amts. of fluorine. [on SciFinder (R)]",
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Ravenstein, van, L, Ming, W, van de Grampel, RD, Linde, van der, R, With, de, G, Loontjens, JA, Thuene, PC & Niemantsverdriet, JW 2003, Low surface energy polymeric films from novel fluorinated blocked isocyanates. in Abstracts of Papers, 225th ACS National Meeting, New Orleans, LA, United States, March 23-27, 2003. American Chemical Society, Washington, D. C, pp. PMSE-162, 225th ACS National Meeting, New Orleans, United States, 23/03/03.

Low surface energy polymeric films from novel fluorinated blocked isocyanates. / Ravenstein, van, L.; Ming, W.; van de Grampel, R.D.; Linde, van der, R.; With, de, G.; Loontjens, J.A.; Thuene, P.C.; Niemantsverdriet, J.W.

Abstracts of Papers, 225th ACS National Meeting, New Orleans, LA, United States, March 23-27, 2003. Washington, D. C : American Chemical Society, 2003. p. PMSE-162.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

TY - GEN

T1 - Low surface energy polymeric films from novel fluorinated blocked isocyanates

AU - Ravenstein, van, L.

AU - Ming, W.

AU - van de Grampel, R.D.

AU - Linde, van der, R.

AU - With, de, G.

AU - Loontjens, J.A.

AU - Thuene, P.C.

AU - Niemantsverdriet, J.W.

PY - 2003

Y1 - 2003

N2 - Polymeric films with surface energies as low as 10 mN/m were prepd. from a mixt. of a hydroxyl-end-capped solventless liq. oligoester (SLO), a blocked polyisocyanate, and a novel fluorinated blocked isocyanate (FB-NCO). In the well-defined FB-NCO the ratio of the fluorinated tail and the caprolactam blocking group was 1:1. Low amts. of fluorine were needed for obtaining very low surface energies via the surface segregation of fluorinated species. The low wettability of films was manifested by high contact angles of water (125 Deg) and hexadecane (80 Deg), by adding less than 5 wt % of fluorine. The pronounced enrichment of fluorinated species at the surface was verified by XPS. The curing temp. not only demonstrated a dramatic effect on the reaction rate but also showed a significant effect on the wettability of the films. A higher curing temp. led to a less significant surface enrichment of fluorine, due to the fast immobilization of the cross-linked networks. The mixts. had excellent stability below the deblocking temp. (.apprx. 140 DegC) of blocked isocyanates, while the well-defined FB-NCO enabled an easy adjustment of fluorine concn., both making this approach practically attractive and efficient to prep. low surface energy films by using small amts. of fluorine. [on SciFinder (R)]

AB - Polymeric films with surface energies as low as 10 mN/m were prepd. from a mixt. of a hydroxyl-end-capped solventless liq. oligoester (SLO), a blocked polyisocyanate, and a novel fluorinated blocked isocyanate (FB-NCO). In the well-defined FB-NCO the ratio of the fluorinated tail and the caprolactam blocking group was 1:1. Low amts. of fluorine were needed for obtaining very low surface energies via the surface segregation of fluorinated species. The low wettability of films was manifested by high contact angles of water (125 Deg) and hexadecane (80 Deg), by adding less than 5 wt % of fluorine. The pronounced enrichment of fluorinated species at the surface was verified by XPS. The curing temp. not only demonstrated a dramatic effect on the reaction rate but also showed a significant effect on the wettability of the films. A higher curing temp. led to a less significant surface enrichment of fluorine, due to the fast immobilization of the cross-linked networks. The mixts. had excellent stability below the deblocking temp. (.apprx. 140 DegC) of blocked isocyanates, while the well-defined FB-NCO enabled an easy adjustment of fluorine concn., both making this approach practically attractive and efficient to prep. low surface energy films by using small amts. of fluorine. [on SciFinder (R)]

M3 - Conference contribution

SP - PMSE-162

BT - Abstracts of Papers, 225th ACS National Meeting, New Orleans, LA, United States, March 23-27, 2003

PB - American Chemical Society

CY - Washington, D. C

ER -

Ravenstein, van L, Ming W, van de Grampel RD, Linde, van der R, With, de G, Loontjens JA et al. Low surface energy polymeric films from novel fluorinated blocked isocyanates. In Abstracts of Papers, 225th ACS National Meeting, New Orleans, LA, United States, March 23-27, 2003. Washington, D. C: American Chemical Society. 2003. p. PMSE-162