Abstract
The synthesis of model linear and star double-comb polybutadienes, as well as molecular double-brush polybutadienes, with two tails emanating from each branch point, is presented. The synthetic approach involves (1) the selective reaction of living polybutadienes with the two chlorines of 4- (dichloromethylsilyl)styrene to make double-tailed macromonomers and (2) the homopolymerization or copolymerization of the double-tailed macromonomer, in situ without isolation, to produce the double brushes and double combs, respectively. The star double comb was synthesized by the reaction of living double-comb polybutadiene with trichloromethylsilane. Characterization carried out by size exclusion chromatography, with differential refractometer and light scattering detectors, indicated that the synthesized polybutadienes had a high degree of molecular and structural homogeneity.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 4070-4078 |
| Number of pages | 9 |
| Journal | Journal of Polymer Science, Part A: Polymer Chemistry |
| Volume | 43 |
| Issue number | 18 |
| DOIs | |
| State | Published - Sep 15 2005 |
| Externally published | Yes |
Keywords
- Anionic polymerization
- Double combs
- Double-tailed macromonomers
- Gel permeation chromatography
- Light scattering
- Molecular double brushes
- Star double combs
ASJC Scopus subject areas
- Polymers and Plastics
- Organic Chemistry
- Materials Chemistry