Preparatino of Nanoporous Poly(methyl silsesquioxane) Thin Films Derived from Chemically Linked Carbon Cages

Bong Jun Cha; Suhan Kim; Kookheon Char

Macromolecular Research, Vol.13, No.3, 176-179, June, 2005

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Preparatino of Nanoporous Poly(methyl silsesquioxane) Thin Films Derived from Chemically Linked Carbon Cages

Bong Jun Cha, Suhan Kim, and Kookheon Char^†

School of Chemical and Biological Engineering andNano Systems Institute-National Core Research Center, Seoul National University, Seoul 151-744, Korea

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[References]

Peters L, Semicond. Int.., May (2001)
Baney RH, Itoh M, Sakakibara A, Suzuki T, Chem. Rev., 95(5), 1409 (1995)
Lee JK, Char K, Rhee HW, Ro HW, Yoo DY, Yoon DY, Polymer, 42, 9058 (2001)
Hawker CJ, Hedrick JL, Miller RD, Volksen W, MRS Bull., April, 54 (2000)
Yang S, Mirau PA, Pai CS, Nalamasu O, Reichmanis E, Pai JC, Obeng YS, Seputro J, Lin EK , Lee HJ, Sun J, Gidly DW, Chem. Mater., 14, 369 (2002)
Kim S, Toivola Y, Cook RF, Char K, Chu SH, Lee JK, Yoon DY, Rhee HW, J. Electrochem. Soc., 151(3), F37 (2004)
Lee JH, Lyu YY, Lee MS, Hahn JH, Rhee JH, Mah SK, Yim JH, Kim SY, Macromol. Mater. Eng., 289, 164 (2004)
Nguyen CV, Carter KR, Hawker CJ, Hedrick JL, Jaffe RL, Miller RD, Remenar JF, Rhee HW, Rice PM, Toney MF, Trollsas M, Yoon DY, Chem. Mater., 11, 3080 (1999)
Toivola Y, Kim S, Cook RF, Char K, Chu SH, Lee JK, Yoon DY, Rhee HW, J. Electrochem. Soc., 151, 45 (2004)
Connor EF, Sundberg LK, Kim HC, Cornelissen JJ, Magbutang T, Rice PM, Lee VY, Hawker CJ, Voklsen W, Hedrick JL, Miller RD, Angew. Chem.-Int. Edit., 42, 3785 (2003)
Yim J, Lyu YY, Jeong H, Song SA, Hwang I, Lee JH, Mah SK, Chang S, Park J, Hu YF, Sun JN, Gidley DW, Adv. Funct. Mater., 13, 382 (2003)
Yim J, Seon J, Jeong H, Pu LS, Banklanov MR, Gidley DW, Adv. Funct. Mater., 14, 277 (2004)
Yim JH, Baklanov MR, Gidley DW, Peng HG, Jeong HD, Pu LS, J. Phys. Chem. B, 108(26), 8953 (2004)
Mikoshiba S, Hayase S, J. Mater. Chem., 9, 591 (1999)
Padovani AM, Rhodes L, Allen SAB, Kohl PA, J. Electrochem. Soc., 149, 161 (2002)
Yu SZ, Wong TKS, Hu X, Pita K, Ligatchev V, J. Electrochem. Soc., 151(5), F123 (2004)
Ro HW, Kim KJ, Theato P, Gidley DW, Yoon DY, Macromolecules, 38(3), 1031 (2005)
Eftink MR, Andy ML, Bystrom K, Perlmutter HD, Kristol DS, J. Am. Chem. Soc., 111, 6765 (1989)
The calculation of bond dissociation energy (BDE) was performed at B3LYP/6-311+G(3df,2p) level using optimized geometries at the B3LYP/6-31G(d) level, B3LYP/6-311+G(3df,2p)//B3LYP/6-31G(d). All the calculations were preformed with the Gaussian 98 program. The estimated results show that the C6H5O-R bond has the lowest BDE of 53.3 kcal/mol, which is in good agreement with the previous results.20
Jursic BS, J. Chem. Soc.-Perkin Trans. 2, 2, 369 (1999)
GC-MS data of recovered products shows a strong peak (m/z = 228) corresponding to adamantylphenol. 1H NMR spectra also confirm the existence of signals at 6.78 and 1.87 ppm corresponding to the adamantylphenol moiety.
Cha BJ, Kim S, Char K, Lee JK, Yoon DY, Rhee HW, Chem. Mater., submitted.
Wang CY, Shen ZX, Zheng JZ, Appl. Spectrosc., 54, 209 (2000)
Porous structure of the films was further investigated using the nitrogen adsorption isotherm. For the measurement, spin-coated films were cured at 450℃ and scraped off the substrate to yield powder specimens. All the isotherms show the typical Type I isotherms with unclosed hysteresis, representing microporous materials with pores below 5 nm.

[Referenced By]

[Related Articles]

[1] Peters L, Semicond. Int.., May (2001)

[2] Baney RH, Itoh M, Sakakibara A, Suzuki T, Chem. Rev., 95(5), 1409 (1995)

[3] Lee JK, Char K, Rhee HW, Ro HW, Yoo DY, Yoon DY, Polymer, 42, 9058 (2001)

[4] Hawker CJ, Hedrick JL, Miller RD, Volksen W, MRS Bull., April, 54 (2000)

[5] Yang S, Mirau PA, Pai CS, Nalamasu O, Reichmanis E, Pai JC, Obeng YS, Seputro J, Lin EK , Lee HJ, Sun J, Gidly DW, Chem. Mater., 14, 369 (2002)

[6] Kim S, Toivola Y, Cook RF, Char K, Chu SH, Lee JK, Yoon DY, Rhee HW, J. Electrochem. Soc., 151(3), F37 (2004)

[7] Lee JH, Lyu YY, Lee MS, Hahn JH, Rhee JH, Mah SK, Yim JH, Kim SY, Macromol. Mater. Eng., 289, 164 (2004)

[8] Nguyen CV, Carter KR, Hawker CJ, Hedrick JL, Jaffe RL, Miller RD, Remenar JF, Rhee HW, Rice PM, Toney MF, Trollsas M, Yoon DY, Chem. Mater., 11, 3080 (1999)

[9] Toivola Y, Kim S, Cook RF, Char K, Chu SH, Lee JK, Yoon DY, Rhee HW, J. Electrochem. Soc., 151, 45 (2004)

[10] Connor EF, Sundberg LK, Kim HC, Cornelissen JJ, Magbutang T, Rice PM, Lee VY, Hawker CJ, Voklsen W, Hedrick JL, Miller RD, Angew. Chem.-Int. Edit., 42, 3785 (2003)

[11] Yim J, Lyu YY, Jeong H, Song SA, Hwang I, Lee JH, Mah SK, Chang S, Park J, Hu YF, Sun JN, Gidley DW, Adv. Funct. Mater., 13, 382 (2003)

[12] Yim J, Seon J, Jeong H, Pu LS, Banklanov MR, Gidley DW, Adv. Funct. Mater., 14, 277 (2004)

[13] Yim JH, Baklanov MR, Gidley DW, Peng HG, Jeong HD, Pu LS, J. Phys. Chem. B, 108(26), 8953 (2004)

[14] Mikoshiba S, Hayase S, J. Mater. Chem., 9, 591 (1999)

[15] Padovani AM, Rhodes L, Allen SAB, Kohl PA, J. Electrochem. Soc., 149, 161 (2002)

[16] Yu SZ, Wong TKS, Hu X, Pita K, Ligatchev V, J. Electrochem. Soc., 151(5), F123 (2004)

[17] Ro HW, Kim KJ, Theato P, Gidley DW, Yoon DY, Macromolecules, 38(3), 1031 (2005)

[18] Eftink MR, Andy ML, Bystrom K, Perlmutter HD, Kristol DS, J. Am. Chem. Soc., 111, 6765 (1989)

[19] The calculation of bond dissociation energy (BDE) was performed at B3LYP/6-311+G(3df,2p) level using optimized geometries at the B3LYP/6-31G(d) level, B3LYP/6-311+G(3df,2p)//B3LYP/6-31G(d). All the calculations were preformed with the Gaussian 98 program. The estimated results show that the C6H5O-R bond has the lowest BDE of 53.3 kcal/mol, which is in good agreement with the previous results.20

[20] Jursic BS, J. Chem. Soc.-Perkin Trans. 2, 2, 369 (1999)

[21] GC-MS data of recovered products shows a strong peak (m/z = 228) corresponding to adamantylphenol. 1H NMR spectra also confirm the existence of signals at 6.78 and 1.87 ppm corresponding to the adamantylphenol moiety.

[22] Cha BJ, Kim S, Char K, Lee JK, Yoon DY, Rhee HW, Chem. Mater., submitted.

[23] Wang CY, Shen ZX, Zheng JZ, Appl. Spectrosc., 54, 209 (2000)

[24] Porous structure of the films was further investigated using the nitrogen adsorption isotherm. For the measurement, spin-coated films were cured at 450℃ and scraped off the substrate to yield powder specimens. All the isotherms show the typical Type I isotherms with unclosed hysteresis, representing microporous materials with pores below 5 nm.