Impulse NMR study of molecular motion in surface layers of polymethylmethacrylate and polystyrene
β Scribed by Yu.S. Lipatov; F.G. Fabulyak
- Book ID
- 118358572
- Publisher
- Elsevier Science
- Year
- 1968
- Weight
- 495 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0032-3950
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π SIMILAR VOLUMES
There are many studies on the surface molecular motion of polymer films [1], but no report on surface thermal properties of polymer because of experimental difficulties. The thermal property of oligomeric polystyrene (PS) was investigated by differential scanning calorimetry (DSC) in the present stu
Head-to-head polystyrene was studied by NMR relaxation measurements in solution and these measurements were compared with those for head-to-tail polystyrene. By measuring the relaxation of the ortho and meta carbons of the phenyl rings of the polystyrenes, it was found that the head-to-head polystyr