Fractionation of partially stereoregular poly(propylene oxide)
✍ Scribed by K. Alyürük; T. Özden; N. Colak
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 306 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0032-3861
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📜 SIMILAR VOLUMES
Polymethylaluminium oxide (PMAO) was prepared by reacting trimethylaluminium (AIMe3) with water in dilute dioxane solution. Several PMAO samples with different degrees of polymerizations (DP) were prepared (1 ~< DP ~< 7) either by changing reaction conditions or by fractionating the products. PMAO w
## Abstract The effect of stereoregularity on the thermo‐oxidative degradation of poly(propylene)s, isotactic (IPP) and syndiotactic (SPP), was compared with that of high density polyethylene (HDPE) by means of chemiluminescence (CL). SPP is extremely stable to thermal oxidation and CL signals appe
The melt miscibility of atactic poly(propylene) (a-PP) with isotactic (i-PP) and syndiotactic poly(propylene) (s-PP), respectively, is investigated by diffusion experiments of i-PP/a-PP/i-PP or s-PP/a-PP/s-PP sandwich specimens using polarized light microscopy. It is shown that the system a-PP/i-PP