Synthesis and characterization of hyperbranched polyurethane hybrids using tetraethoxysilane (TEOS) as cross-linker

Kishore K. Jena; K. V.S.N. Raju

doi:10.1021/ie800884y

Synthesis and characterization of hyperbranched polyurethane hybrids using tetraethoxysilane (TEOS) as cross-linker

Kishore K. Jena, K. V.S.N. Raju

Indian Institute of Chemical Technology

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Abstract

Organic-inorganic hybrid coatings were derived from a hydroxyl-terminated hyperbranched polyester, 3-isocyanatopropyl triethoxysilane (ISPTES), and then cross-linked widi various percentages of SiO₂. This system was able to cross-link by hydrolysis of a tetraethoxysilane group in room temperature and humid conditions and dien at 120 °C for 12-14 h, forming a three-dimensional hybrid structure, where me organic and inorganic phases were bonded covalently. The main focus of this work was to study the change of properties of the coating with SiO₂ modification. These hybrid coatings were also characterized by using NMR spectroscopy, Fourier transform infrared (MlK) spectroscopy, dynamical mechanical thermal analyzer (DMTA), thermal analysis (TGA), and tensile strength.

Original language	British English
Pages (from-to)	9214-9224
Number of pages	11
Journal	Industrial and Engineering Chemistry Research
Volume	47
Issue number	23
DOIs	https://doi.org/10.1021/ie800884y
State	Published - 3 Dec 2008

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title = "Synthesis and characterization of hyperbranched polyurethane hybrids using tetraethoxysilane (TEOS) as cross-linker",

abstract = "Organic-inorganic hybrid coatings were derived from a hydroxyl-terminated hyperbranched polyester, 3-isocyanatopropyl triethoxysilane (ISPTES), and then cross-linked widi various percentages of SiO2. This system was able to cross-link by hydrolysis of a tetraethoxysilane group in room temperature and humid conditions and dien at 120 °C for 12-14 h, forming a three-dimensional hybrid structure, where me organic and inorganic phases were bonded covalently. The main focus of this work was to study the change of properties of the coating with SiO2 modification. These hybrid coatings were also characterized by using NMR spectroscopy, Fourier transform infrared (MlK) spectroscopy, dynamical mechanical thermal analyzer (DMTA), thermal analysis (TGA), and tensile strength.",

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AU - Raju, K. V.S.N.

PY - 2008/12/3

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N2 - Organic-inorganic hybrid coatings were derived from a hydroxyl-terminated hyperbranched polyester, 3-isocyanatopropyl triethoxysilane (ISPTES), and then cross-linked widi various percentages of SiO2. This system was able to cross-link by hydrolysis of a tetraethoxysilane group in room temperature and humid conditions and dien at 120 °C for 12-14 h, forming a three-dimensional hybrid structure, where me organic and inorganic phases were bonded covalently. The main focus of this work was to study the change of properties of the coating with SiO2 modification. These hybrid coatings were also characterized by using NMR spectroscopy, Fourier transform infrared (MlK) spectroscopy, dynamical mechanical thermal analyzer (DMTA), thermal analysis (TGA), and tensile strength.

AB - Organic-inorganic hybrid coatings were derived from a hydroxyl-terminated hyperbranched polyester, 3-isocyanatopropyl triethoxysilane (ISPTES), and then cross-linked widi various percentages of SiO2. This system was able to cross-link by hydrolysis of a tetraethoxysilane group in room temperature and humid conditions and dien at 120 °C for 12-14 h, forming a three-dimensional hybrid structure, where me organic and inorganic phases were bonded covalently. The main focus of this work was to study the change of properties of the coating with SiO2 modification. These hybrid coatings were also characterized by using NMR spectroscopy, Fourier transform infrared (MlK) spectroscopy, dynamical mechanical thermal analyzer (DMTA), thermal analysis (TGA), and tensile strength.

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Synthesis and characterization of hyperbranched polyurethane hybrids using tetraethoxysilane (TEOS) as cross-linker

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