Anionic and cationic polymerization of norbornadiene in hydrocarbon
β Scribed by Nazan (Kasap) Tunoglu; Nurettin Balcioglu
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 28 KB
- Volume
- 20
- Category
- Article
- ISSN
- 1022-1336
No coin nor oath required. For personal study only.
β¦ Synopsis
Norbornadiene (NBD) has been successfully polymerized in benzene solvent in high yield (up to 100%) using AlCl 3 as initiator. Anionic polymerization of the same compound was achieved using butyllithium as initiator. According to the IR and NMR data, both polymers have a 2,6-disubstituted nortricyclene structure. The cationic polymerization gave an amorphous polymer; the anionic polymerization resulted in the formation of a crystalline product showing higher stability.
π SIMILAR VOLUMES
## Abstract A novel method is described for transforming an anionic polymerization process into a cationic polymerization process assisted by organosilyl groups. The reaction of the __p__βtolyldimethylsilyl end group of polystyrene and trifluoromethanesulfonic acid produced a silyl triflate end gro
was not reported (since these studies examined only one The volumetric mixing in anionic/nonionic, cationic/nonionic, mixed surfactant composition). Total surfactant apparent and anionic/cationic mixed micelles was determined by examining molar volumes have been successfully used to determine the to