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Cure depth in photopolymerization: Experiments and theory

Published online by Cambridge University Press:  31 January 2011

Jim H. Lee ,
Robert K. Prud'homme  and
Ilhan A. Aksay
Jim H. Lee
Affiliation:
Department of Chemical Engineering and Princeton Materials Institute, Princeton University, Princeton, New Jersey 08544–5263
Robert K. Prud'homme
Affiliation:
Department of Chemical Engineering and Princeton Materials Institute, Princeton University, Princeton, New Jersey 08544–5263
Ilhan A. Aksay
Affiliation:
Department of Chemical Engineering and Princeton Materials Institute, Princeton University, Princeton, New Jersey 08544–5263
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Abstract

The depth of photocuring for a model resin system was investigated as a function of photoinitiator concentration. Direct measurements of gel thickness were made from thin films of cross-linked multifunctional methacrylate monomer. The monomer, 2,2-bis{4-[2-hydroxy-3-(methacryloxy)propoxy]phenyl}propane, was polymerized in a solution of trichloroethylene with an ultraviolet laser light source at 325 nm. The monomer solutions were photocured using varying levels of both photonic energy and photoinitiator concentration. An optimal photoinitiator concentration that maximized the gel cure depth was observed. Additionally, two regimes were shown to exist in which the shrinkage (upon solvent removal) was minimized or maximized. A model was developed to probe the physics of the system. Good agreement with experiment was obtained, and the model may be employed to predict both the existence and location of the optimal photoinitiator concentration and the corresponding cure depth. The study showed that photoinitiator plays a significant role in controlling the quality and performance of the formed gel network, with special regard to thickness of cured layers. This has potential application to fields as diverse as industrially cured coatings and dental fillings, and more generally, 3-dimensional rapid prototyping techniques.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 12 , December 2001 , pp. 3536 - 3544
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1.Fouassier, J.P., Photoinitiation, Photopolymerization, and Photo-curing (Hanser, Cincinnati, OH, 1995).Google Scholar
2.Fouassier, J.P. and Rabek, J.F., Radiation Curing in Polymer Science and Technology (Elsevier, New York, 1993).CrossRefGoogle Scholar
3.Garg, R., Prud’homme, R.K., Aksay, I.A., Liu, F., and Alfano, R.R., J. Mater. Res. 13, 3463 (1998).CrossRefGoogle Scholar
4.Jacobs, P.F., Rapid Prototyping and Manufacturing (Society of Manufacturing Engineers, Dearborn, MI, 1992).Google Scholar
5.Jacobs, P.F., Stereolithography and other RP&M Technologies (Society of Manufacturing Engineers, Dearborn, MI, 1996).Google Scholar
6.Cox, C.F., Keall, C.L., Keall, H.J., Ostro, E., and Bergenholtz, G., J. Prosthet. Dent. 57, 1–8 (1987).CrossRefGoogle Scholar
7.Anseth, K.S., Newman, S.M., and Bowman, C.N., Adv. Polym. Sci. 122, 177 (1995).CrossRefGoogle Scholar
8.Rueggeberg, F.A., Lockwood, P.E., and Ergle, J.W., J. Dent. Res. 76, 472 (1997).Google Scholar
9.Rueggeberg, F.A., Ergle, J.W., and Lockwood, P.E., Dent. Mater. 13, 360 (1997).CrossRefGoogle Scholar
10.Otsubo, Y., Amari, T., and Watanabe, K., J. Appl. Polym. Sci. 29, 4071 (1984).CrossRefGoogle Scholar
11.Otsubo, Y., Amari, T., and Watanabe, K., J. Appl. Polym. Sci. 31, 2099 (1986).CrossRefGoogle Scholar
12.Ferracane, J.L. and Greener, E.H., J. Dent. Res. 63, 1093 (1984).CrossRefGoogle Scholar
13.Yoshida, K. and Greener, E.H., J. Dent. 22, 296 (1994).CrossRefGoogle Scholar
14.Lecamp, L., Youssef, B., Bunel, C., and Lebaudy, P., Polymer 38, 6089 (1997).CrossRefGoogle Scholar
15.Hoyle, C., Radiation Curing: Science and Technology (Plenum Press, New York, 1992).Google Scholar
16.Brady, G.A. and Halloran, J.W., J. Mater. Sci. 33, 4551 (1998).CrossRefGoogle Scholar
17.Flory, P.J., Principles of Polymer Chemistry (Cornell University Press, Ithaca, NY, 1953).Google Scholar
18.Rubinstein, M. and Colby, R.H., Macromolecules 27, 3184 (1994).CrossRefGoogle Scholar
19.Gottlieb, M. and Macosko, C.W., Macromolecules 15, 535 (1982).CrossRefGoogle Scholar
20.Muthukumar, M. and Winter, H.H., Macromolecules 19, 1284 (1986).Google Scholar
21.Young, J.S., Kannurpatti, A.R., and Bowman, C.N., Macromol. Chem. Phys. 199, 1043 (1998).3.0.CO;2-Z>CrossRefGoogle Scholar
22.Kannurpatti, A.R. and Bowman, C.N., Macromolecules 31, 3311 (1998).CrossRefGoogle Scholar
23.Ciba Specialty Chemicals, Photoinitiators for Curing: A Formulator’s Guide (Ciba, Tarrytown, New York, 1997), p. 21.Google Scholar
24.Aldrich, , Catalog Handbook of Fine Chemicals (Milwaukee, WI, 1998–1999), p. 1639.Google Scholar
25.Hageman, H.J. and Jansen, L.G., Makromol. Chem. 189, 2781 (1988).CrossRefGoogle Scholar
26.Odian, G.G., Principles of Polymerization, 3rd ed. (Wiley, New York, 1991).Google Scholar
27.Lambert, J.H., Photometrie (Augsburg, Germany, 1760).Google Scholar
28.Beer, A., Ann. Physik Chem. 2, 78 (1852).Google Scholar
29.Obukhov, S.P., Rubinstein, M., and Colby, R.H., Macromolecules 27, 3191 (1994).Google Scholar
30.Hale, A., Macosko, C.W., and Bair, H.E., Macromolecules 24, 2610 (1991).CrossRefGoogle Scholar
31.Batch, G.L. and Macosko, C.W., Thermochim. Acta 166, 185 (1990).CrossRefGoogle Scholar
32.Martin, J.E. and Adolf, D., Annu. Rev. Phys. Chem. 42, 311 (1991).Google Scholar
33.Bernhard, P., Hofmann, M., Hunziker, M., Klingert, B., Schulthess, A., and Steinmann, B., in Radiation Curing in Polymer Science and Technology, edited by Fouassier, J.P. and Rabek, J.F. (Elsevier Applied Science, New York, 1993), Vol. IV, pp. 195–236.Google Scholar
34.Bernhard, P., Hofmann, M., Schulthess, A., and Steinmann, B., Chimia 48, 427 (1994).CrossRefGoogle Scholar
35.O’Neil, G.A., Wisnudel, M.B., and Torkelson, J.M., Macromolecules 31, 4537 (1998).CrossRefGoogle Scholar
36.O’Neil, G.A. and Torkelson, J.M., Macromolecules 32, 411 (1999).CrossRefGoogle Scholar