| 1. |
Orientation in nylon spherulites: A study by X‐ray diffraction |
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Journal of Polymer Science,
Volume 60,
Issue 169,
1962,
Page 1-20
J. Mann,
L. Roldan‐Gonzalez,
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摘要:
AbstractA microbeam x‐ray diffraction method has been used to study orientation in spherulites grown from the melt of nylon 66 and in one case of nylon 610. It is concluded that in positively birefringent spherulites the crystallographicaaxis is parallel to the spherulite radius. The zigzag extinction pattern shown by such spherulites in a polarizing microscope can be understood in terms of this orientation. The results on negatively birefringent spherulites are not in agreement with earlier results of Keller and it is suggested that further work on such spherulites is desirable. Evidence is cited which shows that zero birefringent spherulites have random orientation. The spheruloids or spheruloidal aggregates which grow at the same time as negatively birefringent spherulites are found to have well defined optical properties when grown in thin films and confused optical properties when grown in thick film. This difference is reflected in differences in the x‐ray diagrams. In thin films a unique orientation exists in which a direction close to the crystallographicbaxis lies parallel to the radius while the (002) plane lies near the surface of the film. This orientation provides an explanation of the observed optical properties. In thick film the (002) plane again tends to lie near the surface of the film, but orientation relative to the radius varies from place to place, thus causing confused optical propert
ISSN:0022-3832
DOI:10.1002/pol.1962.1206016901
出版商:Interscience Publishers, Inc.
年代:1962
数据来源: WILEY
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| 2. |
The variation of internal friction in polychlorotrifluoroethylene with density and temperature |
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Journal of Polymer Science,
Volume 60,
Issue 169,
1962,
Page 3-5
N. G. McCrum,
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ISSN:0022-3832
DOI:10.1002/pol.1962.1206016907
出版商:Interscience Publishers, Inc.
年代:1962
数据来源: WILEY
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| 3. |
ESR spectra of polytetrafluoroethylene irradiated at 77° K. |
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Journal of Polymer Science,
Volume 60,
Issue 169,
1962,
Page 5-7
N. Tamura,
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ISSN:0022-3832
DOI:10.1002/pol.1962.1206016908
出版商:Interscience Publishers, Inc.
年代:1962
数据来源: WILEY
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| 4. |
Low shear melt viscosity of polystyrene |
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Journal of Polymer Science,
Volume 60,
Issue 169,
1962,
Page 7-9
J. F. Rudd,
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ISSN:0022-3832
DOI:10.1002/pol.1962.1206016909
出版商:Interscience Publishers, Inc.
年代:1962
数据来源: WILEY
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| 5. |
Relation between steady flow and dynamic viscosity |
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Journal of Polymer Science,
Volume 60,
Issue 169,
1962,
Page 9-11
S. Strella,
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ISSN:0022-3832
DOI:10.1002/pol.1962.1206016910
出版商:Interscience Publishers, Inc.
年代:1962
数据来源: WILEY
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| 6. |
The stereochemical configuration of poly(methacrylic anhydride) and its derivatives |
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Journal of Polymer Science,
Volume 60,
Issue 169,
1962,
Page 12-14
J. C. H. Hwa,
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ISSN:0022-3832
DOI:10.1002/pol.1962.1206016911
出版商:Interscience Publishers, Inc.
年代:1962
数据来源: WILEY
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| 7. |
Crystal strain in oriented crystalline polystyrene |
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Journal of Polymer Science,
Volume 60,
Issue 169,
1962,
Page 14-18
Seymour Newman,
R. L. Miller,
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ISSN:0022-3832
DOI:10.1002/pol.1962.1206016912
出版商:Interscience Publishers, Inc.
年代:1962
数据来源: WILEY
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| 8. |
Comments on the irradiation of polypropylene |
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Journal of Polymer Science,
Volume 60,
Issue 169,
1962,
Page 18-18
L. C. Case,
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ISSN:0022-3832
DOI:10.1002/pol.1962.1206016913
出版商:Interscience Publishers, Inc.
年代:1962
数据来源: WILEY
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| 9. |
Mesomorphic character in polymers |
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Journal of Polymer Science,
Volume 60,
Issue 169,
1962,
Page 19-20
D. Brownawell,
I‐Ming Feng,
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ISSN:0022-3832
DOI:10.1002/pol.1962.1206016914
出版商:Interscience Publishers, Inc.
年代:1962
数据来源: WILEY
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| 10. |
Estimation of M̄nfrom osmotic pressure measurements |
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Journal of Polymer Science,
Volume 60,
Issue 169,
1962,
Page 21-23
G. M. Bristow,
M. R. Place,
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ISSN:0022-3832
DOI:10.1002/pol.1962.1206016915
出版商:Interscience Publishers, Inc.
年代:1962
数据来源: WILEY
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