Halogen terminated poly (halostyrenes) and a process for the pre

Details Halogen terminated poly (halostyrenes) and a process for the pre Halogen terminated poly (halostyrenes) and a process for the pre

1990-02-15

1992-09-22

Teskin, Fred

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

Synthetic resins

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

5253307, 525337, 525340, 525371, 525385, 525918, 526221, 526238, 526291, 526293, C08G 6520, C08F 1216

Patent

active

051497433

ABSTRACT:
Novel halostyrene telechelic polymers having from 2 to about 6 terminal halogens, halostyrene-polyether, block copolymers having ABA type structures in star type structures, depending on the number of halogen terminii in the starting halostyrene block, and a process for their formation is described. The halostyrene polymers are formed by the initiator transfer agent or inifer polymerization method; while the polyether block is polymerized by silver catalysis of monomers such as tetrahydrofuran. The polymers and copolymers have good flame resistance.

REFERENCES:
patent: 4870144 (1989-09-01), Noda et al.
le Noble, Highlights of Organic Chemistry, Marcel Dekker, Inc., N.Y. (1974) pp. 223-225.
Trumbo & Harwood, "Analysis of the 300 MHz PMR . . . " (1987) Polymer Bulletin 18, 27-32.
Kennedy & Smith, "New Telechelic Polymers & Sequential . . . " Jour. Poly. Sci. vol. 18, 1523-1537 (1980).
Fehervari & Kennedy, "New Telechelic Polymers & . . . " J. Macromol. Sci.-Chem A15(2) 215-230 (1981).
Ivan, Kennedy & Change, "New Telechelic Polymers & . . . " Jour. Poly. Sci. vol. 18 3177-3191 (1980).
Wondraczek, Kennedy & Storey, "New Telechelic Polymers . . . " Jour. Poly. Sci. vol. 20 43-51 (1982).
Santos, Fehervari & Kennedy, "New Telechelic Polymers . . . " Jour. Poly. Sci. vol. 22 2685-2697 (1984).

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