ポリプロピレン球晶のラメラ組織
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- 小島 盛男
- チッソ株式会社中央研究所
書誌事項
- タイトル別名
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- Lamellar Texture of Isotactic Polypropylene Spherulites
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説明
The surface texture of melt-grown polypropylene spherulites was studied by electron microscopy. The spherulites containing crystals of the β-modification are composed of lath-shaped lamellar crystals doing preferred growth along the radial direction and a little crystals growing along the tangential direction of the spherulite. The spherulites of the β-modification have the characteristic leaflike texture which grows with a spiral form be-ing initiated by the formation of some nuclei. It can be observed that each broad lamella within the spherulite grows accompanied with twist of lamella toward the periphery of spherulite from the center of spiral. Owing to the reason that lamellar crystals grow with a spiral from, it was suggested that the crystal structure of the β-modification proposed until now is necessary to be reinvestigated. It was difficult to obtain well defined spherulitic crystals from thermally decomposed polypropylene by melt-growth, but two types of morphologies of the γ-modification were discriminated. One of them is the lathshaped lamella which is similar to that of the α-modification, and the other is the extremely broad lamella. The reason for the formation of the latter broad lamella is due to the fact that the molecular chains are not folded within the lamella in this case.
収録刊行物
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- 高分子化學
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高分子化學 25 (276), 241-253, 1968
公益社団法人 高分子学会
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詳細情報 詳細情報について
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- CRID
- 1390001206519740288
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- NII論文ID
- 130003835822
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- ISSN
- 18848079
- 00232556
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可