Polyurethane/silica Composites, Prepared Via in-situ Polymerization in the Presence of Chemically Modified Silicas

Sung-Il Lee; Duk-Bae Kim; Jung-Hyun Sin; Youn-Sik Lee; Changwoon Nah

Journal of Industrial and Engineering Chemistry, Vol.13, No.5, 786-792, September, 2007

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Polyurethane/silica Composites, Prepared Via in-situ Polymerization in the Presence of Chemically Modified Silicas

Sung-Il Lee, Duk-Bae Kim, Jung-Hyun Sin, Youn-Sik Lee^†, and Changwoon Nah¹

Division of Environmental and Chemical Engineering, Nanomaterials Research Center, Chonbuk National University, Chonju 561-756, Korea
¹Division of Materials Engineering, Chonbuk National University, Chonju 561-756, Korea

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A hydrophilic fumed nanosilica surface was modified with γ-glycidoxypropyltrimethoxysilane, and subsequently with diethanolamine. The chemically modified silicas were used for the in-situ preparation of polyurethane/ silica composites. The doubly modified silica gave rise to a greater enhancement of the tensile strength and elongation at break of the polymer composite films, as compared to the singly modified silica. The more improved tensile properties were attributed to the more increased number of covalent links between the modified silica surface and polyurethane chains, and the better dispersion of the silica particles in the polyurethane matrix.

Keywords:modified silica;polyurethane/silica composite;glycidoxypropyltrimethoxysilane;diethanolamine

[References]

Oertel G, Polyurethane Handbook (2nd edn). Carl Hanser Verlag: Munich (1994)
Hepburn C, Polyurethane Elastomers, Elsevier Science: New York (1992)
Mark HF, Bikales NM, Overberger CG, Menges G, Encyclopedia of Polymer Science and Engineering (2nd edn), John Wiley & Sons: Chichester (1986)
Alexandre M, Dubois P, Mater. Sci. Eng., 28, 1 (2000)
Hong LY, Cho YS, Kim DP, J. Ind. Eng. Chem., 11(2), 275 (2005)
Park SJ, Li K, Hong SK, J. Ind. Eng. Chem., 11(4), 561 (2005)
Wang Z, Pinnavaia TJ, Chem. Mater., 10, 3769 (1998)
Zilg C, Thomann R, Finter MR, J. Adv. Mater., 11, 49 (1999)
Chen TK, Tien YI, Wei KH, J. Polym. Sci. A: Polym. Chem., 37(13), 2225 (1999)
Chen TK, Tien YI, Wei KH, Polymer, 41(4), 1345 (2000)
Tien YI, Wei KH, Macromolecules, 34(26), 9045 (2001)
Moon SY, Kim JK, Nah C, Lee YS, Eur. Polym. J., 40, 1615 (2004)
Chen X, Wu L, Zhou S, You B, Polym. Int., 52, 993 (2003)
Lee SI, Hahn YB, Nahm KS, Lee YS, Polym. Adv. Technol., 16, 328 (2005)
Nunes RCR, Fonseca JLC, Pereira MR, Polym. Test, 19, 93 (2000)
Waddon AJ, Petrovic ZS, Polym. J., 34, 12 (2002)
Nunes RCR, Pereira RA, Fonseca JLC, Pereira MR, Polym. Test, 29, 707 (2001)
Zyl W, Garcia M, Scharuwen B, Kooi B, Hossen J, Macromol. Mater. Eng., 287, 106 (2002)
Zhou SX, Wu LM, Sun J, Shen WD, J. Appl. Polym. Sci., 88(1), 189 (2003)
Petrovic ZS, Javni I, Waddon A, Banhegyi G, Zhou SX, Wu LM, Sun J, Shen WD, J. Appl. Polym. Sci., 76, 13 (2003)

[Referenced By]

[Related Articles]

[1] Oertel G, Polyurethane Handbook (2nd edn). Carl Hanser Verlag: Munich (1994)

[2] Hepburn C, Polyurethane Elastomers, Elsevier Science: New York (1992)

[3] Mark HF, Bikales NM, Overberger CG, Menges G, Encyclopedia of Polymer Science and Engineering (2nd edn), John Wiley & Sons: Chichester (1986)

[4] Alexandre M, Dubois P, Mater. Sci. Eng., 28, 1 (2000)

[5] Hong LY, Cho YS, Kim DP, J. Ind. Eng. Chem., 11(2), 275 (2005)

[6] Park SJ, Li K, Hong SK, J. Ind. Eng. Chem., 11(4), 561 (2005)

[7] Wang Z, Pinnavaia TJ, Chem. Mater., 10, 3769 (1998)

[8] Zilg C, Thomann R, Finter MR, J. Adv. Mater., 11, 49 (1999)

[9] Chen TK, Tien YI, Wei KH, J. Polym. Sci. A: Polym. Chem., 37(13), 2225 (1999)

[10] Chen TK, Tien YI, Wei KH, Polymer, 41(4), 1345 (2000)

[11] Tien YI, Wei KH, Macromolecules, 34(26), 9045 (2001)

[12] Moon SY, Kim JK, Nah C, Lee YS, Eur. Polym. J., 40, 1615 (2004)

[13] Chen X, Wu L, Zhou S, You B, Polym. Int., 52, 993 (2003)

[14] Lee SI, Hahn YB, Nahm KS, Lee YS, Polym. Adv. Technol., 16, 328 (2005)

[15] Nunes RCR, Fonseca JLC, Pereira MR, Polym. Test, 19, 93 (2000)

[16] Waddon AJ, Petrovic ZS, Polym. J., 34, 12 (2002)

[17] Nunes RCR, Pereira RA, Fonseca JLC, Pereira MR, Polym. Test, 29, 707 (2001)

[18] Zyl W, Garcia M, Scharuwen B, Kooi B, Hossen J, Macromol. Mater. Eng., 287, 106 (2002)

[19] Zhou SX, Wu LM, Sun J, Shen WD, J. Appl. Polym. Sci., 88(1), 189 (2003)

[20] Petrovic ZS, Javni I, Waddon A, Banhegyi G, Zhou SX, Wu LM, Sun J, Shen WD, J. Appl. Polym. Sci., 76, 13 (2003)