Preparation and properties of functionalized polyorganosiloxanes

G O Yahaya, B J Brisdon, M Maxwell, R England

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A series of linear functionalized polyorganosiloxanes of the type Me3SiO[MeSiO(CH2)nR]x(Me2S iO)ySiMe3, where n = 2, R = -(CH2)NMe2; n = 1, R = -(CH2)OEt; n = 4, R = -(CH2)COOEt; n = 3, R = -(CH2)Me, were prepd. and characterized. Functional group loadings of .apprx.4 mol% (x = 1, yr = 25), .apprx.11 mol% (x = 3, yr = 23), and .apprx.30 mol% (x = 8, yr = 18) were obtained by reacting com. available copolymers Me3SiO(MeSi{H} O)x(Me2SiO)ySiMe3 with the appropriate ratios of x:y, with the required quantities of HO(CH2)nR, using dichloro(1,5-cyclooctadiene)-platinum(II) as catalyst. Amine, ether, ester, and alkyl functionalized siloxanes were obtained in good yields after purifn., and each fluid polymer was characterized by 1H and 13C-NMR, and FTIR spectral measurements, elemental anal., viscosity, surface tension, and d. measurements. The functionalized polysiloxanes exhibit Newtonian behavior at shear rate 0.4 - 79.4 s-1, and significant viscosity enhancements were obsd. for all functionalized polymers compared with poly(dimethylsiloxane) fluids of similar chain length. The functionalized siloxanes exhibited in almost all cases an increase in both viscosity and d. as the functional group loading increased. The surface tension of the polymers was measured to be 18.8 - 22.3 mN m-1. [on SciFinder (R)]
Original languageEnglish
Pages (from-to)808-817
Number of pages10
JournalJournal of Applied Polymer Science
Volume82
Issue number4
Publication statusPublished - 2001

Fingerprint

Siloxanes
Polymers
Viscosity
Functional groups
Surface tension
Fluids
Polydimethylsiloxane
Platinum
Chain length
Silicones
Ether
Shear deformation
Amines
Ethers
Esters
Copolymers
Nuclear magnetic resonance
Catalysts

Keywords

  • prepn. and viscosity and surface properties of functionalized polyorganosiloxanes)
  • Polysiloxanes Role
  • methylhydrosiloxane polymer functionalization platinum chlorocyclooctadiene catalyst
  • Surface tension
  • polysiloxane functionalization amine ether ester group
  • Viscosity (prepn. and viscosity and surface properties of functionalized polyorganosiloxanes)
  • PREP (Preparation) (functionalized
  • PRP (Properties)
  • viscosity surface tension functionalized methylhydrosiloxane polymer
  • SPN (Synthetic preparation)

Cite this

Yahaya, G. O., Brisdon, B. J., Maxwell, M., & England, R. (2001). Preparation and properties of functionalized polyorganosiloxanes. Journal of Applied Polymer Science, 82(4), 808-817.

Preparation and properties of functionalized polyorganosiloxanes. / Yahaya, G O; Brisdon, B J; Maxwell, M; England, R.

In: Journal of Applied Polymer Science, Vol. 82, No. 4, 2001, p. 808-817.

Research output: Contribution to journalArticle

Yahaya, GO, Brisdon, BJ, Maxwell, M & England, R 2001, 'Preparation and properties of functionalized polyorganosiloxanes', Journal of Applied Polymer Science, vol. 82, no. 4, pp. 808-817.
Yahaya GO, Brisdon BJ, Maxwell M, England R. Preparation and properties of functionalized polyorganosiloxanes. Journal of Applied Polymer Science. 2001;82(4):808-817.
Yahaya, G O ; Brisdon, B J ; Maxwell, M ; England, R. / Preparation and properties of functionalized polyorganosiloxanes. In: Journal of Applied Polymer Science. 2001 ; Vol. 82, No. 4. pp. 808-817.
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abstract = "A series of linear functionalized polyorganosiloxanes of the type Me3SiO[MeSiO(CH2)nR]x(Me2S iO)ySiMe3, where n = 2, R = -(CH2)NMe2; n = 1, R = -(CH2)OEt; n = 4, R = -(CH2)COOEt; n = 3, R = -(CH2)Me, were prepd. and characterized. Functional group loadings of .apprx.4 mol{\%} (x = 1, yr = 25), .apprx.11 mol{\%} (x = 3, yr = 23), and .apprx.30 mol{\%} (x = 8, yr = 18) were obtained by reacting com. available copolymers Me3SiO(MeSi{H} O)x(Me2SiO)ySiMe3 with the appropriate ratios of x:y, with the required quantities of HO(CH2)nR, using dichloro(1,5-cyclooctadiene)-platinum(II) as catalyst. Amine, ether, ester, and alkyl functionalized siloxanes were obtained in good yields after purifn., and each fluid polymer was characterized by 1H and 13C-NMR, and FTIR spectral measurements, elemental anal., viscosity, surface tension, and d. measurements. The functionalized polysiloxanes exhibit Newtonian behavior at shear rate 0.4 - 79.4 s-1, and significant viscosity enhancements were obsd. for all functionalized polymers compared with poly(dimethylsiloxane) fluids of similar chain length. The functionalized siloxanes exhibited in almost all cases an increase in both viscosity and d. as the functional group loading increased. The surface tension of the polymers was measured to be 18.8 - 22.3 mN m-1. [on SciFinder (R)]",
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TY - JOUR

T1 - Preparation and properties of functionalized polyorganosiloxanes

AU - Yahaya, G O

AU - Brisdon, B J

AU - Maxwell, M

AU - England, R

PY - 2001

Y1 - 2001

N2 - A series of linear functionalized polyorganosiloxanes of the type Me3SiO[MeSiO(CH2)nR]x(Me2S iO)ySiMe3, where n = 2, R = -(CH2)NMe2; n = 1, R = -(CH2)OEt; n = 4, R = -(CH2)COOEt; n = 3, R = -(CH2)Me, were prepd. and characterized. Functional group loadings of .apprx.4 mol% (x = 1, yr = 25), .apprx.11 mol% (x = 3, yr = 23), and .apprx.30 mol% (x = 8, yr = 18) were obtained by reacting com. available copolymers Me3SiO(MeSi{H} O)x(Me2SiO)ySiMe3 with the appropriate ratios of x:y, with the required quantities of HO(CH2)nR, using dichloro(1,5-cyclooctadiene)-platinum(II) as catalyst. Amine, ether, ester, and alkyl functionalized siloxanes were obtained in good yields after purifn., and each fluid polymer was characterized by 1H and 13C-NMR, and FTIR spectral measurements, elemental anal., viscosity, surface tension, and d. measurements. The functionalized polysiloxanes exhibit Newtonian behavior at shear rate 0.4 - 79.4 s-1, and significant viscosity enhancements were obsd. for all functionalized polymers compared with poly(dimethylsiloxane) fluids of similar chain length. The functionalized siloxanes exhibited in almost all cases an increase in both viscosity and d. as the functional group loading increased. The surface tension of the polymers was measured to be 18.8 - 22.3 mN m-1. [on SciFinder (R)]

AB - A series of linear functionalized polyorganosiloxanes of the type Me3SiO[MeSiO(CH2)nR]x(Me2S iO)ySiMe3, where n = 2, R = -(CH2)NMe2; n = 1, R = -(CH2)OEt; n = 4, R = -(CH2)COOEt; n = 3, R = -(CH2)Me, were prepd. and characterized. Functional group loadings of .apprx.4 mol% (x = 1, yr = 25), .apprx.11 mol% (x = 3, yr = 23), and .apprx.30 mol% (x = 8, yr = 18) were obtained by reacting com. available copolymers Me3SiO(MeSi{H} O)x(Me2SiO)ySiMe3 with the appropriate ratios of x:y, with the required quantities of HO(CH2)nR, using dichloro(1,5-cyclooctadiene)-platinum(II) as catalyst. Amine, ether, ester, and alkyl functionalized siloxanes were obtained in good yields after purifn., and each fluid polymer was characterized by 1H and 13C-NMR, and FTIR spectral measurements, elemental anal., viscosity, surface tension, and d. measurements. The functionalized polysiloxanes exhibit Newtonian behavior at shear rate 0.4 - 79.4 s-1, and significant viscosity enhancements were obsd. for all functionalized polymers compared with poly(dimethylsiloxane) fluids of similar chain length. The functionalized siloxanes exhibited in almost all cases an increase in both viscosity and d. as the functional group loading increased. The surface tension of the polymers was measured to be 18.8 - 22.3 mN m-1. [on SciFinder (R)]

KW - prepn. and viscosity and surface properties of functionalized polyorganosiloxanes)

KW - Polysiloxanes Role

KW - methylhydrosiloxane polymer functionalization platinum chlorocyclooctadiene catalyst

KW - Surface tension

KW - polysiloxane functionalization amine ether ester group

KW - Viscosity (prepn. and viscosity and surface properties of functionalized polyorganosiloxanes)

KW - PREP (Preparation) (functionalized

KW - PRP (Properties)

KW - viscosity surface tension functionalized methylhydrosiloxane polymer

KW - SPN (Synthetic preparation)

M3 - Article

VL - 82

SP - 808

EP - 817

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

SN - 0021-8995

IS - 4

ER -