Diblock Copolymers of Polystyrene/1,2 Polybutadiene and Polystyrene/Polybutene-1: Molecular Structure, Morphology and Mechanical Properties.
Abstract
A novel set of diblock copolymers has been examined in various molecular and morphological characterization experiments, in small amplitude dynamic mechanical tests and in large deformation experiments. In all of the materials studied, one of the block sequences is atactic polystryrene; the second block is comprised of either 1,2 polybutadiene (essentially 100% vinyl adduct and atactic microstructure) or its hydrogenated product, polybutene-1 (also atactic). There is a pronounced influence of the hydrogenation of the rubbery phase on the morphology and the properties of the diblock copolymers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 15, 1984
- Accession Number
- ADA144980
Entities
People
- J. M. Torradas
- Robert E. Cohen
Organizations
- Massachusetts Institute of Technology