Copolymer having peroxy bonds in the molecule thereof and a process for producing the same
AssigneeNippon Oil and Fats Co., Ltd.
InventorsMasaru Matsushima, Takeshi Komai, Masaharu Nakayama
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Abstract
A copolymer having peroxy bonds in the molecule thereof which is obtained by copolymerizing an diacyl type polymeric peroxide having ester bonds therein with one or more monomers having double bonds therein, may have a broad range of average molecular weight and a lot of peroxy bonds therein, and it may be used as an useful polymerization initiator in producing a block copolymer.
Claims6
A copolymer having peroxy bonds in the molecule thereof, which copolymer is prepared by copolymerizing a diacyl type polymeric peroxide having the formula ##STR43## wherein R.sub.1 is alkylene having 1 to 15 carbon atoms or phenylene,
- R.sub.2 is alkylene having 2 to 10 carbon atoms, --(CHR.sub.3,CH.sub.2 O).sub.l CHR.sub.3,CH.sub.2 wherein R.sub.3, is hydrogen or methyl and l is 1 to 10, ##STR44## and n is 2 to 10 with one or more monomers having the formula
- CHX.sub.1 .dbd.CX.sub.2 X.sub.3
- wherein
- X.sub.1 is hydrogen, ##STR45## X.sub.2 is hydrogen, --CH.sub.3, --Cl or --CN, X.sub.3 is --Cl, --CN, ##STR46## or X.sub.1 and X.sub.3 together define ##STR47## in which R.sub.3 and R.sub.4 are alkyl having 1 to 18 carbon atoms or substituted alkyl having 1 to 18 carbon atoms
- with the provisos that
- (1) when X.sub.1 and X.sub.2 are both hydrogen, X.sub.3 is ##STR48## (2) when X.sub.1 is hydrogen and X.sub.2 is --CH.sub.3, X.sub.3 is ##STR49## (3) when X.sub.1 is hydrogen and X.sub.2 is --Cl or --CN, X.sub.3 is --Cl, CN or --CH.dbd.CH.sub.2
- (4) when X.sub.1 is ##STR50## X.sub.2 is hydrogen, and X.sub.3 is ##STR51## (5) when X.sub.1 and X.sub.3 together define ##STR52## X.sub.2 is hydrogen, said copolymer consisting essentially of units of the formula --CHX.sub.1 --CX.sub.2 X.sub.3 -- and ##STR53## wherein 1.ltoreq.m.ltoreq.n-1.
A copolymer as claimed in claim 1 or claim 4 wherein said diacyl type polymeric peroxide is selected from the group consisting of ##STR54##
A process for preparing a copolymer having peroxy bonds in the molecule thereof which comprises copolymerizing a diacyl type polymeric peroxide having the formula ##STR55## wherein R.sub.1 is alkylene having 1 to 15 carbon atoms or phenylene,
- R.sub.2 is alkylene having 2 to 10 carbon atoms, --(CHR.sub.3,CH.sub.2 O).sub.l CHR.sub.3,CH.sub.2 wherein R.sub.3, is hydrogen or methyl and l is 1 to 10, ##STR56## and n is 2 to 10 with one or more monomers having the formula
- CHX.sub.1 .dbd.CX.sub.2 X.sub.3
- wherein
- X.sub.1 is hydrogen, ##STR57## X.sub.2 is hydrogen, --CH.sub.3, --Cl or --CN X.sub.3 is --Cl, --CN, ##STR58## or X.sub.1 and X.sub.3 together define ##STR59## in which R.sub.3 and R.sub.4 are alkyl having 1 to 18 carbon atoms or substituted alkyl having 1 to 18 carbon atoms
- with the provisos that
- (1) when X.sub.1 and X.sub.2 are both hydrogen, X.sub.3 is --Cl, --CN, ##STR60## (2) when X.sub.1 is hydrogen and X.sub.2 is --CH.sub.3, X.sub.3 is ##STR61## (3) when X.sub.1 is hydrogen and X.sub.2 is --Cl or --CN, X.sub.3 is --Cl, CN or --CH.dbd.CH.sub.2
- (4) when X.sub.1 is ##STR62## X.sub.2 is hydrogen, and X.sub.3 is ##STR63## (5) when X.sub.1 and X.sub.3 together define ##STR64## X.sub.2 is hydrogen, said copolymer consisting essentially of units of the formula --CHX.sub.1 --CX.sub.2 X.sub.3 -- and ##STR65## wherein 1.ltoreq.m.ltoreq.n-1.
Dependencies are inferred from the claim text.