Poly(glycidyl ether)block copolymers and process for their prepa

Details Poly(glycidyl ether)block copolymers and process for their prepa Poly(glycidyl ether)block copolymers and process for their prepa

1982-09-15

1984-11-27

Lieberman, Allan M.

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

Synthetic resins

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

525 56, 525349, 525379, 525385, 525409, 525524, C08F29700, C08G 6512

Patent

active

044852118

ABSTRACT:
Under particular conditions, a cationic ring-opening polymerization of a first oxirane monomer selected from the group consisting of an acyclic glycidyl ether, a cyclic glycidyl ether, and a haloalkyl epoxide, in the presence of a hydroxyl-containing organic material ("HCM"), for example a polymer (referred to herein as a `hydroxyl-prepolymer`), and a particular catalyst, produces a polymerization having `living polymerization` characteristics. The result is that molecular weight (mol wt) of the resulting polymer is directly proportional to the conversion of the monomer to said resulting polymer. This HCM serves as a chain propagator which initially furnishes OH groups as propagation sites. Subsequently, a second oxirane monomer, different from said first, is sequentially polymerized to yield a block copolymer. Branched block copolymers, or linear block copolymers of a HCM and (a) one or more glycidyl ethers, or (b) a haloalkyl epoxide and at least one glycidyl ether, may be prepared. Halogen containing segments of the block copolymers of the invention may be aminated to produce amphophilic polymers.

REFERENCES:
patent: 3029216 (1962-04-01), Bailey et al.
patent: 3754053 (1973-08-01), Kray et al.
patent: 3864288 (1975-02-01), Riew et al.
patent: 4200733 (1980-04-01), Perner et al.
patent: 4256910 (1981-03-01), Hsu
patent: 4279798 (1981-07-01), Aggarwal et al.
patent: 4360451 (1982-11-01), Schmolka

Affiliated with

Also associated with

Rating

Poly(glycidyl ether)block copolymers and process for their prepa does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Poly(glycidyl ether)block copolymers and process for their prepa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Poly(glycidyl ether)block copolymers and process for their prepa will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2135006