Bulk copolymerization of methacryloyloxypropyl functionalized siloxane macromonomers with styrene: 1. Network formation

O’Shea, Mike; George, Graeme A.

doi:10.1016/0032-3861(94)90594-0

Cited by 4 publications

(5 citation statements)

References 18 publications

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“…1 and 2) followed by polyaddition of the vinylidene groups (Scheme ), producing a tough hybrid gel and short carbon chains; or radical polymerization of the methacrylate groups (Scheme ) followed by the hydrolysis–condensation step (eqs. 1 and 2), which produces flexible polymers with a tensile strength that is lower, the longer the carbon chain 22–24, 40–43. The final features of MPTMS‐based hybrids thus correlate closely with the nature of the interactions between inorganic network and organic phase depending on the synthesis procedure involved.…”

Section: Discussionmentioning

confidence: 91%

“…1 and 2), which produces flexible polymers with a tensile strength that is lower, the longer the carbon chain. [22][23][24][40][41][42][43] The final features of MPTMS-based hybrids thus correlate closely with the nature of the interactions between inorganic network and organic phase depending on the synthesis procedure involved. In this study we investigated the effect of inorganic condensation on the capacity for radical bulk polymerization of the organic functions, and consequently also on the structural features of the hybrid polymers.…”

Section: Discussionmentioning

confidence: 99%

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Structure‐related behavior of hybrid organic–inorganic materials prepared in different synthesis conditions from Zr‐based NBBs and 3‐methacryloxypropyl trimethoxysilane

Maggio

Callone

Girardi

et al. 2012

J of Applied Polymer Sci

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The copolymerization of zirconium oxo‐clusters (Zr12) with 3‐methacryloxypropyl (trimethoxy)silane (MPTMS), using a Si/Zr molar ratio of 4, was investigated. The hybrid samples were prepared both with and without organosilane prehydrolysis. Differential scanning calorimetry (DSC), multinuclear liquid, and solid state NMR analyses and Fourier transform infrared (FTIR) spectroscopy were used to characterize the hybrid materials and study the influence of synthesis conditions on condensation and polymerization. The degree of condensation (DOC) of the silsesquioxane network and the polymerization yield are generally high. However, the organosilane prehydrolysis step leads to the reduction of the extent of phase interaction, thus favoring the phase separation between silica‐zirconia‐based domains. Dynamic mechanical spectroscopy (DMS) analyses were performed on the hybrid polymers obtained by means of the two synthetic pathways. The sample prepared without the organosilane prehydrolysis step presents a higher glass transition temperature (Tg) than the one with silane prehydrolysis. By heating above the Tg, the samples retain shape and size, due to the lack of viscous flow. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

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Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Structure‐related behavior of hybrid organic–inorganic materials prepared in different synthesis conditions from Zr‐based NBBs and 3‐methacryloxypropyl trimethoxysilane

Maggio

Callone

Girardi

et al. 2012

J of Applied Polymer Sci

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“…154 Its reaction with m-isopropenyl-R,R-dimethyl benzyl isocyanate (m-TMI), vinyldimethyl-azlactone (VDMAz), isopropenyl dimethyl azlactone (IDMAz), or isocyanatoethylmethacrylate (IEM) (Scheme 27) led to the corresponding macromonomers with styrenic, acrylamide, methacrylamide, or methacrylate functions, respectively. In order to obtain cross-linked materials, Tenhu and Heino 155 and later O'Shea and George 156,157 copolymerized R,ω-methacrylate-terminated polysiloxane with styrene. The macromonomer was obtained by hydrosilylation of allyl methacrylate on hydride-terminated polydimethylsiloxane.…”

Section: Multifunctional Macromonomersmentioning

confidence: 99%

“…In order to obtain cross-linked materials, Tenhu and Heino and later O’Shea and George , copolymerized α,ω-methacrylate-terminated polysiloxane with styrene. The macromonomer was obtained by hydrosilylation of allyl methacrylate on hydride-terminated polydimethylsiloxane.…”

Section: Copolymers Obtained By Conventional Radical Polymerizationmentioning

confidence: 99%

Well-Architectured Poly(dimethylsiloxane)-Containing Copolymers Obtained by Radical Chemistry

et al. 2009

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“…The hydrolysis mechanism and the copolymerization of MAS with silica or methyl methacrylate to prepare bulk gels have been investigated. [12][13][14][15] The preparation and properties of flexible free-standing gel films has not been reported yet.…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of silicon-containing polymer hybrids from 3-methacryloxypropyltrimethoxysilane

Abe

Honda

Gunji

1998

Appl. Organometal. Chem.

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The preparation of organic-inorganic polymer hybrids consisting of carbon-carbon and siloxane chains was investigated by radical polymerization of 3-methacryloxypropyltrimethoxysilane (MAS) followed by acid-catalyzed hydrolytic polycondensation. The condensation of poly(3-methacryloxypropyltrimethoxysilane) (S-PMA) of various molecular weights M n = 830-12000 prepared by polyaddition provided transparent and flexible free-standing hybrid gel films. The mechanical properties of these films were highly dependent on the carbon-carbon chain length: with an increase in the carboncarbon chain length, the elasticity of gel films increased, while the tensile strength and Young's modulus decreased. Hydrolyzability of S-PMA decreased with an increase in the carbon-carbon chain length, resulting in the formation of rubber-like films with flexibility.

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Bulk copolymerization of methacryloyloxypropyl functionalized siloxane macromonomers with styrene: 1. Network formation

Cited by 4 publications

References 18 publications

Structure‐related behavior of hybrid organic–inorganic materials prepared in different synthesis conditions from Zr‐based NBBs and 3‐methacryloxypropyl trimethoxysilane

Structure‐related behavior of hybrid organic–inorganic materials prepared in different synthesis conditions from Zr‐based NBBs and 3‐methacryloxypropyl trimethoxysilane

Well-Architectured Poly(dimethylsiloxane)-Containing Copolymers Obtained by Radical Chemistry

Preparation and properties of silicon-containing polymer hybrids from 3-methacryloxypropyltrimethoxysilane

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