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11. |
Miscibility studies of poly-p-phenylene terephthalamide/polyamide molecular composites |
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Journal of Macromolecular Science, Part B,
Volume 29,
Issue 2-3,
1990,
Page 263-281
Ho Sung Park,
Thein Kyu,
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摘要:
Miscibility characteristics of poly-p-phenylene terephthalamide (PPTA) with nylon 6, nylon 66, nylon 11, and nylon 12 have been examined by means of differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD). Mixtures of PPTA/nylon 6, 66, 11, and 12 and amorphous nylon were prepared by coagulation in water from isotropic sulfuric acid solutions. The WAXD investigation shows the presence of small amounts of disordered crystals in the regenerated pure PPTA and to a lesser amount in the blends of PPTA/amorphous nylon or PPTA/aliphatic crystalline nylons. DSC studies show the melting point depression of nylon crystals. At low PPTA contents, a small melting point elevation occurs in nylon 6, presumably due to nucleation. The Flory-Huggins interaction parameter (χ) was subsequently calculated from the melting point depression of the nylons.
ISSN:0022-2348
DOI:10.1080/00222349008245778
出版商:Taylor & Francis Group
年代:1990
数据来源: Taylor
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12. |
Macromolecular nomenclature |
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Journal of Macromolecular Science, Part B,
Volume 29,
Issue 2-3,
1990,
Page 283-284
Preview
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PDF (71KB)
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ISSN:0022-2348
DOI:10.1080/00222349008245779
出版商:Taylor & Francis Group
年代:1990
数据来源: Taylor
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