Allyl terminated macromolecular monomers of polyethers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08G-065/32
C08G-065/04
출원번호
US-0771093
(1985-08-30)
발명자
/ 주소
Yu Simon H. (North Ridgeville OH)
출원인 / 주소
The B. F. Goodrich Company (Akron OH 02)
인용정보
피인용 횟수 :
26인용 특허 :
2
초록▼
A cationic ring-opening polymerization of a cyclic ether (“CE”) in conjunction with an unsaturated alcohol (propagator) having an allyl double bond, produces a polyether macromer having an allylic group near one end and a hydroxyl group at the other. The polymerization proceeds by polyaddition of th
A cationic ring-opening polymerization of a cyclic ether (“CE”) in conjunction with an unsaturated alcohol (propagator) having an allyl double bond, produces a polyether macromer having an allylic group near one end and a hydroxyl group at the other. The polymerization proceeds by polyaddition of the CE to the OH group which is the propagating species. The CE is an alkylene oxide or an aliphatic or aromatic glycidyl ether; the propagator is a primary or secondary alcohol which, if cyclic may have a single internal double bond in one ring. The catalyst is a Friedel-Crafts acid, strong protic organic or inorganic acid, oxonium salt, or the like. The macromer formed may be homopolymerized to yield a polyvinyl homomacromer with pendant chains of polymerized CE; or the CE may be copolymerized with a wide variety of olefinically unsaturated monomers to form a macromer copolymer; or, plural cyclic ethers may be (a) sequentially polymerized to form macromer block copolyethers, or, (b) polymerized randomly to form macromer copolyether copolymers. The cationically ring-opened macromer formed always contains a trace of a cyclic oligomer of the CE.
대표청구항▼
A process for the manufacture of a polyether macromer having an allylic group at one end and a hydroxyl group at the other, comprising, polymerizing (A) a cationically ring-openable cyclic ether selected from the group consisting of (i) at least one alkylene oxide having the structure [Figure] (I) w
A process for the manufacture of a polyether macromer having an allylic group at one end and a hydroxyl group at the other, comprising, polymerizing (A) a cationically ring-openable cyclic ether selected from the group consisting of (i) at least one alkylene oxide having the structure [Figure] (I) wherein, x is an integer in the range from 0 to about 4, except that when x>1, a second alkylene oxide having x=1 or 0 must be present, and, R1, R2 and R3 are independently selected from the group consisting of hydrogen, C1-C20 alkyl (having from 1 to about 20 carbon atoms) and haloalkyl, and, C6-C20 aryl and aralkyl, and, at least one of R1, R2, and R3 is hydrogen; and (ii) an aliphatic or aromatic glycidyl ether having the structure [Figure] (II) wherein R1 has the same connotation as hereinabove; and, R4 represents a member selected from the group consisting of, C1-C20 alkyl or substituted alkyl, haloalkyl, alkoxyalkyl, aryl (Ar), substituted aryl (Ar-Q), wherein Q represents C1-C10 alkyl, haloalkyl; and, (B) a monoolefinically unsaturated primary or secondary alcohol represented by a structure selected from the group consisting of [Figure] (III) [Figure] (IV) wherein, G, if present, is a spacer selected from the group consisting of branched or linear alkyl, aralkyl, haloalkyl, haloaralkyl, alkoxyl and aralkoxy, each having from 1 to about 20 carbon atoms (C1-C20); and, R5, R6 and R7 are independently selected from the group consisting of hydrogen, C1-C20 alkyl (having from 1 to about 20 carbon atoms) and haloalkyl, and, C6-C20 aryl and aralkyl; in the presence of an effective amount of (C) a cationic initiator selected from the group consisting of Friedel-Crafts acids, relatively strong protic organic and inorganic acids, oxonium salts and stable carbenium ions; so as to produce a macromer having the structure R-(M)m-OH (V) wherein R represents the residue of said monoolefinically unsaturated alcohol, M represents the residue of at least one said cyclic ether which is ring-opened, and, m represents an integer in the range from 2 to about 500 with Mn=200-10,000.
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