共重合ポリエステル繊維の結晶性と配向性
書誌事項
- タイトル別名
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- Crystallinity and Orientation of Copolyester Fibers
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説明
Polyethylene terephthalate adipate (PET/PEA), polyethylene terephthalate sebacate (PET/PES), and polyethylene terephthalate isophthalate (PET/PEI) copolymers containing more than 90 mole-percent polyethylene terephthalate (PET) were prepared. The effect of foreign monomer units on the physical properties of these copolymers was discussed.<BR>(a) Changes in Tm and T0 of these copolymers show the best fit to Flory's and Gordon-Taylor's equations, which take into account of random copolymers.<BR>(b) In copolyester fibers, the crystal of PET is unable to include foreign monomer units in it.<BR>(c) The fibers scarcely contain voids of linear dimensions ranging from 20 to 300 Å, which voids would make X-ray diffraction patterns diffuse.<BR>(d) For PET/PEA and PET/PES, with increasing proportion of the foreign monomer units, decreasing of crystallinity and increasing of dyeability are affected much greater than in the case of PET/PEI.<BR>For PET/PES fibers, the shortening of a long period was also observed.<BR>(e) In drawn fibers, reduction in the degree of orientation with copolymerization was generally observed while the degree of crystalline orientation was almost unaltered.
収録刊行物
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- 高分子化學
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高分子化學 21 (236), 729-736, 1964
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
- 1390282681496222592
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- NII論文ID
- 130004032494
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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
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可