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Analysis of polyolefin blends by CRYSTAF
Author(s) -
Brüll Robert,
Grumel Valérie,
Pasch Harald,
Raubenheimer Helgard G.,
Sanderson Ron,
Wahner Udo M.
Publication year - 2002
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200202)178:1<81::aid-masy81>3.0.co;2-z
Subject(s) - polyolefin , high density polyethylene , tacticity , materials science , polypropylene , polyethylene , fractionation , ternary operation , polymer blend , crystallization , composite material , polymer chemistry , polymer , copolymer , polymerization , organic chemistry , chemistry , computer science , programming language , layer (electronics)
Crystallization analysis fractionation (CRYSTAF) has been introduced for the analysis of the composition of polyolefin blends and the chemical composition distribution of polyolefins. Blends of syndiotactic and isotactic polypropylene (sPP and iPP) and of s PP/High density polyethylene (HDPE) have been fractionated by CRYSTAF and the results been compared to those from DSC. While the blends of sPP and HDPE cannot be separated by DSC a quantitative determination of both components is possible by CRYSTAF over the whole range with the detection limit being 1% on both ends. Furthermore it is demonstrated that the separation of ternary blends of sPP, iPP and HDPE is possible by CRYSTAF.