抄録
Polyethylene having 1,2- or 1,3-disubstituted cyclopentane structures was prepared by copolymerization of ethylene and cyclopentene (CPE) or 1,5-hexadiene (HD), and the crystalline structure was studied. Treatment with fuming nitric acid preferentially degraded the amorphous phase of the copolymers, and the structure of degraded samples indicated that 1,3-disubstituted cyclopentane units were taken in the crystalline phase of poly(ethylene-co-HD). Infrared spectra of the copolymers indicated the increase of hexagonal-phase character in poly(ethylene-co-HD) with increasing content of 1,3-disubstituted cyclopentane units. Wide-angle X-ray diffraction patterns of poly(ethylene-co-HD) showed a continuous transition from the orthorhombic phase to the hexagonal phase in the copolymer with HD content less than 15 mol %. On the other hand, 1,2-disubstituted cyclopentane structures were not taken in the crystalline phase, but in the amorphous phase.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 9999-10003 |
| ページ数 | 5 |
| ジャーナル | Macromolecules |
| 巻 | 35 |
| 発行部数 | 27 |
| DOI | |
| 出版物ステータス | Published - 2002 12 31 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Materials Chemistry
これを引用
Crystalline structure of polyethylene containing 1,2- or 1,3-disubstituted cyclopentane units in the main chain. / Naga, Naofumi; Tsubooka, Michiyo; Sone, Masato; Tashiro, Kohji; Imanishi, Yukio.
：: Macromolecules, 巻 35, 番号 27, 31.12.2002, p. 9999-10003.研究成果: Article
}
TY - JOUR
T1 - Crystalline structure of polyethylene containing 1,2- or 1,3-disubstituted cyclopentane units in the main chain
AU - Naga, Naofumi
AU - Tsubooka, Michiyo
AU - Sone, Masato
AU - Tashiro, Kohji
AU - Imanishi, Yukio
PY - 2002/12/31
Y1 - 2002/12/31
N2 - Polyethylene having 1,2- or 1,3-disubstituted cyclopentane structures was prepared by copolymerization of ethylene and cyclopentene (CPE) or 1,5-hexadiene (HD), and the crystalline structure was studied. Treatment with fuming nitric acid preferentially degraded the amorphous phase of the copolymers, and the structure of degraded samples indicated that 1,3-disubstituted cyclopentane units were taken in the crystalline phase of poly(ethylene-co-HD). Infrared spectra of the copolymers indicated the increase of hexagonal-phase character in poly(ethylene-co-HD) with increasing content of 1,3-disubstituted cyclopentane units. Wide-angle X-ray diffraction patterns of poly(ethylene-co-HD) showed a continuous transition from the orthorhombic phase to the hexagonal phase in the copolymer with HD content less than 15 mol %. On the other hand, 1,2-disubstituted cyclopentane structures were not taken in the crystalline phase, but in the amorphous phase.
AB - Polyethylene having 1,2- or 1,3-disubstituted cyclopentane structures was prepared by copolymerization of ethylene and cyclopentene (CPE) or 1,5-hexadiene (HD), and the crystalline structure was studied. Treatment with fuming nitric acid preferentially degraded the amorphous phase of the copolymers, and the structure of degraded samples indicated that 1,3-disubstituted cyclopentane units were taken in the crystalline phase of poly(ethylene-co-HD). Infrared spectra of the copolymers indicated the increase of hexagonal-phase character in poly(ethylene-co-HD) with increasing content of 1,3-disubstituted cyclopentane units. Wide-angle X-ray diffraction patterns of poly(ethylene-co-HD) showed a continuous transition from the orthorhombic phase to the hexagonal phase in the copolymer with HD content less than 15 mol %. On the other hand, 1,2-disubstituted cyclopentane structures were not taken in the crystalline phase, but in the amorphous phase.
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U2 - 10.1021/ma021323d
DO - 10.1021/ma021323d
M3 - Article
AN - SCOPUS:0037207214
VL - 35
SP - 9999
EP - 10003
JO - Macromolecules
JF - Macromolecules
SN - 0024-9297
IS - 27
ER -