Process for producing polymers having oxetanyl group on side chain
First Claim
1. A process for producing a polymer of formula (2) in high yield, which comprises subjecting a monomer of formula (1):
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to ring-opening polymerization, alone or together with another monomer containing an epoxy group, to produce said polymer of formula (2);
wherein A represents a hydrogen atom or an alkyl group of 1-6 carbon atoms and R represents a hydrogen atom, a chloromethyl group, straight chain alkyl group or branched chain alkylene group of 1-12 carbon atoms, phenyl group, straight or branched chain alkyloxymethyl group of 1-12 carbon atoms or phenoxymethyl group, and n and m each represent a molar fraction, n being 100-1 mol %, m being 0-99 mol % with n+m=100,said polymerization reaction being carried out in the presence of an anionic initiator at a temperature of −
78°
C. to 80°
C., resulting in selective ring-opening polymerization of the oxirane ring of the monomer of formula (1) but not the oxetane ring of the monomer of formula (1).
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Abstract
Polymers having an oxetanyl group on the side chain and being represented by the following formula (2) are provided. They are usable for reactions such as ring-opening reaction and addition reaction. The process comprises subjecting to anionic ring-opening polymerization a 3-[(oxiranylmethoxy)methyl]oxetane monomer represented by the following formula (1) alone or together with other monomer containing an epoxy group:
wherein A represents a hydrogen atom or an alkyl group of 1-6 carbon atoms,
wherein A is the same as above, and R represents a hydrogen atom, a chloromethyl group, straight chain alkyl group or branched chain alkylene group of 1-12 carbon atoms, phenyl group, straight or branched chain alkyloxymethyl group of 1-12 carbon atoms or phenoxymethyl group, and n and m each represent a molar fraction, n being 100-1 mol %, m being 0-99 mol % with n+m=100.
8 Citations
7 Claims
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1. A process for producing a polymer of formula (2) in high yield, which comprises subjecting a monomer of formula (1):
-
to ring-opening polymerization, alone or together with another monomer containing an epoxy group, to produce said polymer of formula (2);
wherein A represents a hydrogen atom or an alkyl group of 1-6 carbon atoms and R represents a hydrogen atom, a chloromethyl group, straight chain alkyl group or branched chain alkylene group of 1-12 carbon atoms, phenyl group, straight or branched chain alkyloxymethyl group of 1-12 carbon atoms or phenoxymethyl group, and n and m each represent a molar fraction, n being 100-1 mol %, m being 0-99 mol % with n+m=100, said polymerization reaction being carried out in the presence of an anionic initiator at a temperature of −
78°
C. to 80°
C., resulting in selective ring-opening polymerization of the oxirane ring of the monomer of formula (1) but not the oxetane ring of the monomer of formula (1).- View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification