Abstract
High-molecular-weight linear polyureas of different hard-segment content are obtained with a two-step solution polymerization. Elimination of water, careful choice of solvent, reactant concentration, and good control of reaction temperature are essential to obtain satisfactory results. The authors have studied the influence of the hard-segment content of the mechanical, dynamic-mechanical, and thermal properties of these solution polymerized amine-terminated polypropylene-oxide-based thermoplastic polyureas. Two-phase morphology is predominant within the range of the hard-segment concentration studied.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 86-99 |
| Number of pages | 14 |
| Journal | Rubber Chemistry and Technology |
| Volume | 61 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 1988 |