Dynamic star polymers and a method for the synthesis thereof

Details Dynamic star polymers and a method for the synthesis thereof Dynamic star polymers and a method for the synthesis thereof

1998-06-04

2000-10-10

Truong, Duc

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525244, 525314, 525315, 525316, 528495, C08L 4700, C08L 5300

Patent

active

061302910

ABSTRACT:
A dynamic star polymer contains a plurality of at least three substantially identical block copolymers, each block copolymer including an aromatic polymer moiety having a glass transition temperature of at least about 95.degree. C., and an aliphatic polymer moiety incompatible with the aromatic polymer moiety. The aromatic moieties of each of the formed block copolymers aggregate to form a chemically uncrosslinked core, while the aliphatic polymer moieties radiate outwardly from the core. The multi-arm star polymer is uniquely capable of changing its molecular structure under external influences, and the core thereof preferably exhibits thermoplastic characteristics.

REFERENCES:
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patent: 4946899 (1990-08-01), Kennedy et al.
patent: 5122572 (1992-06-01), Kennedy et al.
patent: 5395885 (1995-03-01), Kennedy et al.
patent: 5428111 (1995-06-01), Faust et al.
International Symposium on Ionic Polymerization, Paris, Jul. 1997.

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