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Norm
ASTM D 5576
Ausgabedatum: 2013 04 01
Standard Practice for Determination of Structural Features in Polyolefins and Polyolefin Copolymers by Infrared Spectrophotometry (FT-IR)
This practice covers infrared spectrophotometry procedures for determining the molecular structural features such as types and number of branches in polyolefins and polyo...
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Herausgeber:
American Society for Testing and Materials
Format:
Digital | 3 Seiten
Sprache:
Englisch
ICS
This practice covers infrared spectrophotometry procedures for determining the molecular structural features such as types and number of branches in polyolefins and polyolefin copolymers. The structural features expressed by these determinations affect the ultimate polymeric properties and are useful in showing correlations with many performance properties. The apparatus is comprised of double beam or Fourier transform infrared spectrophotometer, hot plate, microscope slides, compression molding press, metal plates, brass shims, micrometer, and film mounts. Materials shall include polyethylene terephthalate, aluminum, or matte finished teflon-fiberglass sheet. The concentration shall be calculated using either the Beer-Lambert law with the appropriate molar absorptivity or an appropriate calibration curve.
ASTM D 5576
2013 04 01
Standard Practice for Determination of Structural Features in Polyolefins and Polyolefin Copolymers...
Norm
↖
ASTM D 5576
2000
Standard Practice for Determination of Structural Features in Polyolefins and Polyolefin Copolymers ...
Norm