Synthesis of low-molecular-weight telechelic polyisobutylene

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Walch, E. and Gaymans, R.J. (1993) Synthesis of low-molecular-weight telechelic polyisobutylene. Polymer, 34 (2). pp. 412-417. ISSN 0032-3861

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Abstract:Telechelic polyisobutylene with chlorine end-groups was made by cationic polymerization of isobutylene in methylene chloride with difunctional initiators (2,5-dimethoxy-2,5-dimethylhexane and 2,5-diacetyl-2,5-dimethylhexane). The structure of these initiators resembles that of polyisobutylene. BCl3 and TiCl4 were used as catalysts. The molecular weight of these telechelics was varied between 600 and 3500 g mol-1, with a molecular-weight distribution ranging from 1.3 to 2.1. The materials were characterized by high-performance liquid chromatography, nuclear magnetic resonance and infra-red spectroscopy.
Item Type:Article
Copyright:© 1993 Elsevier Science
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Link to this item:http://purl.utwente.nl/publications/9784
Official URL:http://dx.doi.org/10.1016/0032-3861(93)90098-U
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Metis ID: 105336