Sage Journals: Discover world-class research

Abstract

A series of aliphatic 1, 4-diaminobutane based polyamides 4.y with y = 8, 9, 10 and 12 was synthesized and characterized. For comparison, some 1, 6-diaminohexane based counterparts were also studied. PA 4.12, and in particular PA 4.10, proved to have a very beneficial combination of T_m , crystallization rate and physical properties. First indications were obtained, that for a series of aliphatic polyamide isomers, containing 16 carbon atoms in the repeating unit, the melting points are related to the number of ways to make an energetically favourable chain fold upon crystallization: isomers having two possible ways of chain folding have T_m s which are 13–15 °C lower than isomers having only one possible way of chain folding upon crystallization.

Get full access to this article

View all access options for this article.

References

[1] Carothers W H 1938 US Patent 2130948

[2] Roerdink E and Warnier J M M 1985 Polymer 26 1582-1582

[3] Haerschnitz R , Heather P , Derks W and Leeuwendal R 1990 Kunststoffe 80 1272-1272

[4] Roerdink E and Havenith H 1997 Kunststoffe 87 1114-1114

[5] Dreyfuss P 1973 J. Polym. Sci., Polym. Phys. Ed. 11 201-201

[6] Jones N A , Atkins E D T , Hill M J , Cooper S J and Franco L 1997 Polymer 38 2689-2689

[7] Roerdink E , De Jong P J and Warnier J M M 1984 Polymer Commun. 25 194-194

[8] Kricheldorf H R , Schwarz G , De Abajo J and De la Campa J G 1991 Polymer 32 942-942

[9] Koning C , Teuwen L , Meijer E W and Moonen J 1994 Polymer 35 4889-4889

10.

[10] Atkins E D T , Hill M , Hong S K , Keller A and Organ S 1992 Macromolecules 25 917-917

11.

[11] Koenig J L and Agboatwalla M C 1968 J. Macromol. Sci.-Phys. B 2 391-391

Polyamides 4.10 and 4.12 and their Isomers

Abstract

Get full access to this article

References