Abstract
A novel redox initiator system for carrying out the cationic polymerization of epoxide, oxetane and vinyl ether monomers has been developed. The redox couple is based on a triarylsulfonium salt as the oxidant with an organosilane as the reducing agent. The reaction between these two agents is markedly catalyzed by platinum and palladium complexes. Cationic polymerizations using this redox initiator system were carried out in a conventional manner with neat monomer or under solution conditions. This paper also describes the novel use of a two-component redox system in which the silane is delivered to the monomer sample in the vapor state. Optical pyrometry (infrared thermography) was employed as a convenient method with which to monitor the polymerizations. A study of the effects of variations in the structures of the triarylsulfonium salt, the silane and the type of noble metal catalyst were carried out. The use of this initiator system for carrying out commercially attractive cross-linking polymerizations for coatings, composites and electronic encapsulations is discussed.
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Crivello JV (1993) In: Brunelle DJ (ed) Ring-opening polymerization. Hanser, Munich
Crivello JV, Fan M, Bi D (1992) J Appl Polym Sci 44:9
Crivello JV, Lee JL (1985) Polym J 17(1):73
Crivello JV (1985) In: McGrath JE (ed) Ring-opening polymerization. ACS Symp Ser No. 286. American Chemical Society, Washington, DC
Crivello JV (1978) In: Pappas SP (ed) UV curing science and technology. Technology Marketing, Stamford, CT
Pappas SP (1999) In: Pappas SP (ed) Radiation curing science and technology. Plenum, New York
Fletcher CJM, Hinshelwood CN (1935) J Chem Soc 596
Walton TC, Crivello JV, Malik R (1997) Chem Mater 9:1273
Crivello JV, Lam JHW (1981) J Polym Sci Part A: Polym Chem 19:539
Crivello JV, Lee JL (1983) J Polym Sci Part A: Polym Chem 21(4):1097
Crivello JV, Lee JL (1983) Makromol Chem 184:463
Ledwith A (1978) Polymer 19:1217
Klemm E, Flammersheim H-J, Märtin R, Hörhold H-H (1985) Angew Makromol Chem 135:131
Baumann H, Timpe H-J (1984) Z Chem 24:18
Baumann H, Timpe H-J (1984) J Prakt Chem 326:529
Timpe H-J, Merckel C, Baumann H (1986) Makromol Chem 187:187
Yagci Y, Ledwith A (1988) J Polym Sci Part A: Polym Chem 26:1911
Dursun C, Degirmenci M, Yagci Y, Jockusch S, Turro NJ (2003) Polymer 44:7389
Degirmenci M, Hepuzer Y, Yagci Y (2002) J Appl Polym Sci 85:2389
Yagci Y, Kminek I, Schnabel W (1992) Eur Polym J 28:387
Yagci Y, Kminek I, Schnabel W (1993) Polymer 34:426
Durmaz YY, Moszner N, Yagci Y (2008) Macromolecules 41:6714
Lalevée J, Blanchard N, El-Roz M, Graff B, Allonas X, Fouassier JP (2008) Macromolecules 41:4180
Lalevée J, El-Roz M, Graff B, Allonas X, Fouassier JP (2008) J Polym Sci Part A: Polym Chem 46(9):3042
Lalevée J, Dirani A, El-Roz M, Allonas X, Fouassier JP (2008) J Polym Sci Part A: Polym Chem 46(6):2008
Crivello JV, Lee JL (1985) Polym J 17(1):73
Crivello JV, Jo KD, Kim WG, Bratslavsky S (1995) In: Mishra M, Nuyken O, Kobayashi S, Yagci Y, Sar B (eds) Macromolecular engineering: recent advances. Plenum, New York
Crivello JV, Lee JL (1989) J Polym Sci Part A: Polym Chem 27:3951
Crivello JV, Lam JHW (1978) J Org Chem 43:3055
Akhtar SR, Crivello JV, Lee JL, Schmitt ML (1990) Chem Mater 2(6):732
Crivello JV, Ma J, Jiang F (2002) J Polym Sci Part A: Polym Chem 40(20):3465
Crivello JV, Kong S (2000) Macromolecules 33(3):825
Falk B, Vallinas SM, Crivello JV (2003) J Polym Sci Part A: Polym Chem 41(4):579
Crivello JV, Falk B, Vallinas SM (2003) Polym Mater Sci Eng Prepr 88:209
Crivello JV, Falk B, Jang M, Zonca Jr MR, Vallinas SM (2004) RadTech Report May/June, p 36
Crivello JV (2009) J Polym Chem Part A: Polym Chem (in press)
Knipe AC (1981) In: Sterling CJM, Patai S (eds) The chemistry of the sulphonium group. Wiley, New York
Grimshaw J (1981) In: Sterling CJM, Patai S (eds) The chemistry of the sulphonium group. Wiley, New York
Larson GL (ed) (2008) Silicon-based reducing agents. Supplement to the Gelest Catalog. available on-line at www.gelest.com
Crivello JV (1980) CHEMTECH 10(10):624
Chojnowski J, Fortuniak W, Stanczyk W (1987) J Am Chem Soc 109:7776
Eaborn C (1991) J Organomet Chem 405:173
Kursanov DN, Parnes ZN, Loim NM (1974) Synthesis 9:633
Carey FA, Tremper HS (1968) J Am Chem Soc 90:2578
Lambert JB, Zhang S, Stern CL, Huffman JC (1993) Science 260:1917
Olah GA, Rasul G, Li X-Y, Buchholz HA, Sanford G, Surya Prakash GK (1994) Science 263:984
Marciniec B (1992) Comprehensive handbook on hydrosilation. Pergamon, Oxford
Odian G (2004) Principles of polymerization. Wiley-Interscience, New York
Karstedt BD (1973) US Patent 3,715,334 to General Electric Corp
Lamoreaux HF (1965) US Patent 3,220,972 to General Electric Corp
Ojima I, Li Z, Zhu J (1998) In: Rappoport Z, Apeloig Y (eds) Chemistry of silicon compounds. Wiley, New York
Saveant JM (1964) CR Hebd Seances Acad Sci Ser C 258:585
Nuyken O, Crivello JV (1992) In: Kricheldorf HR (ed) Handbook of polymer synthesis. Part A. Marcel Dekker, New York
Gandini A, Cheradame H (1980) Cationic polymerisation: initiation processes with alkenyl monomers. Springer, Heidelberg
Watt WR (1979) In: Bauer RS (ed) Epoxy resin chemistry. ACS Symp Ser 114. American Chemical Society, Washington, DC
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Crivello, J.V. Redox Initiated Cationic Polymerization: Reduction of Triarylsulfonium Salts by Silanes. Silicon 1, 111–124 (2009). https://doi.org/10.1007/s12633-009-9007-1
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DOI: https://doi.org/10.1007/s12633-009-9007-1