Abstract
The LCST-type phase behavior was observed for the blend of protonated polyisoprene (HPI) and deuterated polybutadiene (DPB) by small-angle neutron scattering (SANS), time-resolved light scattering (LS), and cloud point measurements. The thermodynamic interaction parameter was determined to evaluate the miscibility by analyzing the SANS scattering profile in a single-phase state. In this paper the microstructure effects of polydienes on the phase diagrams and the miscibility of HPI/DPB blends is discussed. Furtherfore we explain the observed microstructure effects in terms of the random copolymer effect. The effective interaction parameter for the DPB/HPI blends is separated into the fundamental segmental interaction parameters between every pair of 1,2- and 1,4-unit in DPB and 3,4- and 1,4-unit in HPI.
| Original language | English |
|---|---|
| Pages (from-to) | 147-148 |
| Number of pages | 2 |
| Journal | American Chemical Society, Polymer Preprints, Division of Polymer Chemistry |
| Volume | 31 |
| Issue number | 2 |
| Publication status | Published - 1990 Aug 1 |
| Externally published | Yes |
| Event | Papers presented at the Washington, DC Meeting 1990 of the ACS, Division of Polymer Chemistry - Washington, DC, USA Duration: 1990 Aug 26 → 1990 Aug 31 |
ASJC Scopus subject areas
- Materials Science(all)
- Polymers and Plastics
- Engineering(all)