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ORIENTED POLYMERS OBTAINED BY RADIATION POLYMERIZATION OF ORIENTED LOW MOLECULAR WEIGHT SPECIES

Objective


Materials and technology have been developed to produce uniaxially oriented polymers for optical fibre coating with low thermal stresses. The low thermal expansion materials have high potential in integrated circuit encapsulation. Efforts have continued to achieve materials with low thermal expansion properties in 2 direction, rather than the one direction necessary for the optical fibre coatings. This helps avoid stresses on a flat substrate.

The basic materials developed still suffer from insufficient thermal stability for the encapsulation applications, and further research is concentrated on materials with improved thermal performance.

New display principles were developed, based on the oriented polymer networks as developed in the BRITE project. These new displays are at present being optimized.
FIBRES MADE FROM HIGHLY ORIENTED POLYMERS ARE ALREADY WIDELY USED IN A LARGE NUMBER OF APPLICATIONS, E.G. TEXTILES, COMPOSITE MATERIALS AND IN THE LOAD BEARING ELEMENTS OF OPTICAL TELECOMMUNICATION CABLES.

THE CONVENTIONAL PROCESSES OF SPINNING COMMONLY USED HAVE VARIOUS DISADVANTAGES, WHICH ARE RELATED TO THE PROBLEM OF ORIENTING LONG POLYMER MOLECULES.
THE PRIMARY OBJECTIVE OF THE PROJECT IS TO DEVELOP NEW FIBRE SPINNING AND DRY - AND - WET SPINNING METHODS WITHOUT THE USUAL DISADVANTAGES BY USING THE BETTER HANDLING PROPERTIES OF A PRECURSOR WITH A LOWER MOLECULAR WEIGHT.
THE INNOVATION SUCH A DEVELOPMENT WOULD REPRESENT IS THAT FIBRES CAN BE SPUN AT RELATIVELY LOW TEMPERATURES AND PRESSURES, PREVENTING POLYMER DEGRADATION WITHOUT THE USE OF SOLVENT.

THE SECONDARY OBJECTIVE IS TO USE THE NEWLY DEVELOPED TECHNIQUE FOR THE COATING OF OPTICAL GLASS FIBRE.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

Union Chimique Belge SA
Address

1620 Drogenbos
Belgium

Participants (2)

NETHERLANDS RESEARCH SCHOOL FOR ASTRONOMY - LEGALLY REPRESENTED BY UNIVERSITY OF GRONINGEN
Netherlands
Address
5,Broerstraat 5
9712 CP Groningen
Philips Gloeilampen Fabrieken NV
Netherlands
Address

5600 JM Eindhoven