Abstract
Controlled polymerization of hexamethylcyclotrisiloxane was achieved by carrying out the polymerization first at room temperature to about 50% conversion and then at -20 °C until complete conversion in order to avoid side reactions. The poly(dimethylsiloxane)s produced show narrow molecular weight distributions (Mw/Mn≤1.1). Using this approach, a model linear triblock copolymer PS-b-PDMS-b-PS, as well as 3-miktoarm star co- and terpolymers of the (PDMS)(PS)2 and (PDMS)(PS)(PI) type, where PS is polystyrene, PI is polyisoprene, and PDMS is poly(dimethylsiloxane), have been prepared.
Original language | English (US) |
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Pages (from-to) | 6993-6997 |
Number of pages | 5 |
Journal | Macromolecules |
Volume | 33 |
Issue number | 19 |
DOIs | |
State | Published - Sep 19 2000 |
Externally published | Yes |
ASJC Scopus subject areas
- Materials Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Organic Chemistry