Influence of Polycondensation Type on Structure of Resorcinol Formaldehyde Resin Studied by Molecular Simulation

Sung Seen Choi

Korea Polymer Journal, Vol.8, No.3, 125-130, June, 2000

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Influence of Polycondensation Type on Structure of Resorcinol Formaldehyde Resin Studied by Molecular Simulation

Sung Seen Choi^†

Kumho Research and Development Center, 555, Sochon-dong, Kwangsan-gu, Kwangju 506-040, Korea

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Resorcinol formaldehyde resins are synthesized by polycondensation of resorcinol with formaldehyde and have various structures by the condensation type. The influence of polycondensation type on the stability and structure of the resorcinol formaldehyde resin was studied by molecular mechanics and molecular dynamics. The resins formed by 2,6-polycondensation and 4,6-polycondensation with head-to-tail orientations have structures of intramolecular hydrogen bonds between 1-hydroxyl groups and between outer hydroxyl groups of the adjacent resorcinols respectively. The resin formed by 2,6-polycondensation with head-to-head orientation has a structure that inner hydroxyl groups cluster in the center of the molecule. Energetical stability of the resin is affected by both the intramolecular hydrogen bonds and the steric hindrance by phenyl group.

[References]

Knop A, Pilato LA, Phenolic Resins, Springer-Verlag, Berlin, 1985 (1985)
Grenierloustalot MF, Larroque S, Grande D, Grenier P, Bedel D, Polymer, 37(8), 1363 (1996)
Grenierloustalot MF, Larroque S, Grenier P, Polymer, 37(4), 639 (1996)
Gutsche CD, Dhawan B, No KH, Muthukrishnan R, J. Am. Chem. Soc., 103, 3782 (1981)
Lamartine R, Plast. Rubber Proc. Appl., 6, 313 (1986)
Paulus E, Bohmer V, Makromol. Chem., 185, 1921 (1984)
Casiraghi G, Cornia M, Sartori G, Casnati G, Bocchi V, Andreetti GD, Makromol. Chem., 183, 2611 (1982)
Casiraghi G, Cornia M, Ricci G, Casnati G, Andreetti GD, Zetta L, Macromolecules, 17, 19 (1984)
Gwin LE, Weaver EJ, J. Elast. Plast., 9, 289 (1977)
Hamed GR, Huang J, Rubber Chem. Technol., 64, 285 (1991)
Magnus FL, Hamed GR, Rubber Chem. Technol., 64, 65 (1991)
Duin M, Souphanthong A, Rubber Chem. Technol., 68, 717 (1995)
Templeton MK, Szmanda CR, Zampini A, Proc. SPIE, 771, 136 (1987)
Pekala RW, J. Mater. Sci., 24, 3221 (1989)
Letts SA, Buckley SR, Kong FM, Lindsay EF, Sattler ML, Mater. Res. Soc. Symp. Proc., 177, 275 (1990)
Iengar Y, J. Appl. Polym. Sci., 19, 855 (1975)
Solomon TS, Rubber Chem. Technol., 58, 561 (1985)
Maple JR, Dinur U, Hagler T, Proc. Nat. Acad. Sci. U.S.A., 85, 5350 (1988)
Wilson EB, Decius JC, Cross PC, Molecular Vibrations, Dover, New York (1980)
Choi SS, J. Polym. Sci. A: Polym. Chem., 36(9), 1355 (1998)

[Referenced By]

[1] Knop A, Pilato LA, Phenolic Resins, Springer-Verlag, Berlin, 1985 (1985)

[2] Grenierloustalot MF, Larroque S, Grande D, Grenier P, Bedel D, Polymer, 37(8), 1363 (1996)

[3] Grenierloustalot MF, Larroque S, Grenier P, Polymer, 37(4), 639 (1996)

[4] Gutsche CD, Dhawan B, No KH, Muthukrishnan R, J. Am. Chem. Soc., 103, 3782 (1981)

[5] Lamartine R, Plast. Rubber Proc. Appl., 6, 313 (1986)

[6] Paulus E, Bohmer V, Makromol. Chem., 185, 1921 (1984)

[7] Casiraghi G, Cornia M, Sartori G, Casnati G, Bocchi V, Andreetti GD, Makromol. Chem., 183, 2611 (1982)

[8] Casiraghi G, Cornia M, Ricci G, Casnati G, Andreetti GD, Zetta L, Macromolecules, 17, 19 (1984)

[9] Gwin LE, Weaver EJ, J. Elast. Plast., 9, 289 (1977)

[10] Hamed GR, Huang J, Rubber Chem. Technol., 64, 285 (1991)

[11] Magnus FL, Hamed GR, Rubber Chem. Technol., 64, 65 (1991)

[12] Duin M, Souphanthong A, Rubber Chem. Technol., 68, 717 (1995)

[13] Templeton MK, Szmanda CR, Zampini A, Proc. SPIE, 771, 136 (1987)

[14] Pekala RW, J. Mater. Sci., 24, 3221 (1989)

[15] Letts SA, Buckley SR, Kong FM, Lindsay EF, Sattler ML, Mater. Res. Soc. Symp. Proc., 177, 275 (1990)

[16] Iengar Y, J. Appl. Polym. Sci., 19, 855 (1975)

[17] Solomon TS, Rubber Chem. Technol., 58, 561 (1985)

[18] Maple JR, Dinur U, Hagler T, Proc. Nat. Acad. Sci. U.S.A., 85, 5350 (1988)

[19] Wilson EB, Decius JC, Cross PC, Molecular Vibrations, Dover, New York (1980)

[20] Choi SS, J. Polym. Sci. A: Polym. Chem., 36(9), 1355 (1998)