Cationic Polymerization of 3, 3-Bis(chloromethyl)oxacyclobutane

Wavelength tunability in photoinitiated cationic polymerization

Onium salts, widely used cationic photoinitiators, have absorption in the short wavelength of the UV spectrum. However, their spectral sensitivity can be tuned up to the visible region by using several methods. Photosensitization of onium salts, their charge transfer complex formation and their free radical promotion are some techniques that are used to provide wavelength flexibility. This chap...

Synthesis and polymerization studies of 3-(+) and (-)- menthyl carboxylate pyrroles

The synthesis of 3-(-)and 3-(+)-menthyl carboxylate pyrrole was achieved in four high yielding steps, including the triisopropylsilyl (TIPS) protection of the pyrrole nitrogen, bromination of the 3-position, lithium halogen exchange followed by reaction with menthyl chloroformate, and finally de-protection. Chemical polymerization of both the TIPS protected, and non-protected, menthyl carboxyla...

Preparation and Characterization of Smcl3(THF)3 and Sm(BH4)3(THF)3 Complexes

The synthesis of SmCl3(THF)3 from SmCl3.6H2O is described. The reaction of SmCl3(THF)3 with NaBH4 in dry THF gave white microcrystalline tris (tetrahydroborato) tris (tetrahydrofuran) samarium (III), Sm(BH4)3(THF)3. The vibrational and magnetic properties of Sm(BH4)3...

Group 3 metal catalysts for ethylene and -olefin polymerization

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Observation of eliminative cationic polymerization within van der Waals clusters