## Abstract The solution properties of hydroxyl terminated hyperbranched aliphatic polyesters and their acetyl derivatives have been studied by measuring viscosity parameters. The polarity of terminated groups of molecules is the most important factor affecting their properties. The intrinsic visco
Investigating the Molecular Architecture of Hyperbranched Polymers
β Scribed by Amit S. Kulkarni; Gregory Beaucage
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 241 KB
- Volume
- 28
- Category
- Article
- ISSN
- 1022-1336
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Hyperbranched polymers constitute a unique class of branched macromolecules, where structural complexity is complemented by relative ease of synthesis. The increasing interest in the study of these materials is due to their distinctive properties, inherently tied to their complex molecular architecture, and is augmented by the continual growth of applications like catalysis, viscosity modifiers, and sensors. We report a structural model for HBPs based on fractal scaling of both mass and connectivity. This model is shown to be of use in understanding small angle scattering data, especially in comparison with nuclear magnetic resonance spectroscopy for structural characterization.
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π SIMILAR VOLUMES
## Abstract **Summary:** Two series of hyperbranched conjugated polymers were synthesized via an A~3~β+βB~2~ type Wittig reaction. The molecular weights of the polymers were successfully tuned by simply changing the feed ratio of the monomers. Polymers with higher molecular weights presented more e
## Abstract This paper describes random branching theory, a model for the solution structure of hyperbranched polymers. In this model, the hyperbranched polymer is assumed to be composed of units whose structure is simpler than the resulting polymer. These simple units can have any structure of che