Crystalline structure were studied on both block and random propyleneethylene copolymer fractions, which were obtained by temperature rising elution fractionation. The peak characteristic of a-polypropylene (PP) was observed for all fractions, except the fraction eluted at room temperature. A charac
Fractionation of ethylene-propylene copolymers
✍ Scribed by Toshio Ogawa; Shoichi Tanaka; Tadami Inaba
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- English
- Weight
- 39 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0021-8995
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## Abstract The intermolecular structural heterogeneity of a propylene‐ethylene random copolymer was studied by preparative temperature rising elution fractionation combined with GPC, ^13^C‐NMR, differential scanning calorimetry, and wide‐angle X‐ray diffraction analysis of the obtained fractions.
## Abstract An ethylene–propylene copolymer synthesized with a Ziegler–Natta catalyst was fractionated by a combination of dissolution/precipitation and temperature‐gradient extraction fractionation. The fractions were characterized with ^13^C‐NMR, differential scanning calorimetry, and wide‐angle
The article describes the mechanical properties of a propylene-ethylene block copolymer (Co-PP) used as a matrix with acrylic acid (AA) and strengthened with glass fiber. Isotactic polypropylene (i-PP) is also used as a matrix to compare with the results obtained from the Co-PP grafting. Experimenta