Fibre-forming copolymers

Fibre forming copolymers of type 9 have been synthesized in dimethyl sulfoxide (DMSO) and in emulsion34. ... 

Hicks, J. Flame retardant investigations in acryUc fibre-forming copolymers. Ph.D. dissertation. Univmity of Bolton, Bolton, Lancashire, England, 2005. 

Whilst by far the bulk of polyamide materials are used in the form of fibres, they have also become of some importance as speciality thermoplastics of particular use in engineering applications. The fibre-forming polyamides and their immediate chemical derivatives and copolymers are often referred to as nylons. There are also available polyamides of more complex composition which are not fibre-forming and are structurally quite different. These are not normally considered as nylons (see Section 18.10). 

Chemical Modifications of Fibre Forming Polymers and Copolymers of Acrylonitrile... 

Synthesis and Modification of Fibre-Forming Acrylonitrile Copolymers... 

More and more emphasis has recently been placed on the synthesis of fibre-forming AN copolymers containing reactive groups8. Among the monomers used to obtain reactive copolymers of considerable interest is diketene (1) (2-methylene-4-oxooxe-tane). 

Of substantial interest for the synthesis of fibre-forming reactive AN copolymers is the use of methacrolein 4 as second monomer, which affords copolymers of type 5, containing aldehyde groups. 

However, no studies have been carried out until recently on the synthesis of AN copolymers containing only a small quantity of monomeric diene units which may have fibre forming properties. It is only in the last few years that several reports have appeared on the copolymerization of AN with butadiene in DMF28 and on the use of AN-butadiene copolymers to obtain fibres29. ... 

The synthesis of copolymers from AN and isoprene (ISP) is one of the most promising and effective methods of modifying the properties of PAN to obtain fibres with improved practical properties40. This fibre-forming AN copolymer can, in principle, be also used to spin fibres without using a solvent. 

Rogovin, Z. A. and Gabrielyan, G. A. Chemical Modifications of Fibre Forming Polymers and Copolymers of Acrylonitrile. Vol. 25, pp. 97-134. 

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