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Preparation and Properties of Polyallenes. II. Phase Transitions of Polyallene |
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| Authors: | R Havinga A Schors J W Visser |
| Institution: | 1. Centraal Laboratorium TNO , Delft and The Technical University of Delft Delft , The Netherlands;2. Technical Physical Department of TNO , The Technical University of Delft Delft , The Netherlands |
| Abstract: | Polyallenes prepared with the aid of organoaluminum-VOCl3 catalysts appear to exist in three distinct phases: two crystalline phases (I and II) and an amorphous phase. Phase I shows two strong X-ray diffraction peaks at d = 5.62 Å and d = 4.04 Å; phase II has three strong peaks at d = 6.28 Å, d = 5.03 Å, and d = 4.21 Å. The band of the amorphous phase has its maximum at about d = 5.6 Å. |
| Keywords: | poly (2‐[3‐(6‐tetralino)‐3‐methyl‐1‐cyclobutyl]‐2‐hydroxy ethyl methacrylate) and poly [2‐(3‐mesityl‐3‐methyl‐1‐cyclobutyl)‐2‐oxoethyl methacrylate) inverse gas chromatography polymer‐solvent interactions |