Method for producing polymer using monomer having piperidine skeleton, and molded body
AssigneeMitsubishi Rayon Co., Ltd.
InventorsFuminori Nakaya, Tetsuya Noda, Keiichi Sakashita
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Abstract
Disclosed are a method for producing a polymer by a polymerization of a mixture at a temperature of 210° C. or lower, wherein the mixture comprises 0.01 to 35 mol % of a monomer or a polymer thereof which has a piperidine skeleton represented by formula (1), and a molded body thereof. R1 represents a hydrogen atom or a methyl group, X represents an oxygen atom, an imino group, or a specific oxygen atom containing a hydrocarbon group, and R2 and R3 represent a hydrogen atom, a linear alkyl group with C1 to C8, a branched alkyl group with C1 to C8, an alicyclic hydrocarbon with C6 to C8, or an aryl group, wherein R2 and R3 may also form a cyclic structure.
Claims5
A method for producing a polymer, the method comprising:
- polymerizing, at a temperature of 210° C. or lower, a mixture comprising:
- a monomer (a1), and
- a monomer component (a2) comprising at least 50 wt % of methyl methacrylate, to obtain a first polymer;
- and then,
- polymerizing, at a temperature of 210° C. or lower, a second mixture comprising the first polymer and a further monomer component (a2′) comprising at least 50 wt % of methyl methacrylate, wherein the second mixture comprises from 0.01 to 35 mol % of the monomer (a1), which has formula (1):
- wherein, R1 is a hydrogen atom or a methyl group,
- X is an oxygen atom, an imino group, a group having formula (2), or a group having formula (3):
- wherein, in formula (2), n is an integer of 1 to 10, and R4 and R5 are each independently a hydrogen atom or a methyl group, with the proviso that at least one of R4 and R5 is a hydrogen atom,
- wherein, in formula (3), n is an integer of 1 to 10,
- R2 and R3 are each independently a hydrogen atom, a linear alkyl group with a carbon number of 1 to 8, a branched alkyl group with a carbon number of 1 to 8, an optionally substituted alicyclic hydrocarbon with a carbon number of 6 to 8, or R2 and R3 together form an optionally substituted cyclic structure.
A method for producing a polymer, the method comprising:
- polymerizing at a temperature of 210° C. or lower, a monomer mixture comprising:
- from 0.01 to 35 mol % of a monomer (a1) of formula (1);
- and
- from 65 to 99.99 mol % of a monomer component (a2) comprising 50 wt % or more of methyl methacrylate,
- wherein the monomer (a1) has formula (1):
- wherein, in formula (1):
- R1 is a hydrogen atom or a methyl group;
- X is a group having formula (2):
- wherein, in formula (2):
- n is an integer of 1 to 10;
- and
- R4 and R5 are each independently a hydrogen atom or a methyl group, with the proviso that at least one of R4 and R5 is a hydrogen atom;
- and
- R2 and R3 are each independently a hydrogen atom, a linear alkyl group with a carbon number of 1 to 8, a branched alkyl group with a carbon number of 1 to 8, an optionally substituted alicyclic hydrocarbon with a carbon number of 6 to 8, or R2 and R3 together form an optionally substituted cyclic structure.
A method for producing a polymer, the method comprising:
- polymerizing at a temperature of 210° C. or lower, a monomer mixture comprising:
- from 0.01 to 35 mol % of a monomer (a1) of formula (1);
- and
- from 65 to 99.99 mol % of a monomer component (a2) comprising 50 wt % or more of methyl methacrylate,
- wherein the monomer (a1) has formula (1):
- wherein, in formula (1):
- R1 is a hydrogen atom or a methyl group;
- X is a group having formula (3):
- wherein n is an integer of 1 to 10;
- and
- R2 and R3 are each independently a hydrogen atom, a linear alkyl group with a carbon number of 1 to 8, a branched alkyl group with a carbon number of 1 to 8, an optionally substituted alicyclic hydrocarbon with a carbon number of 6 to 8, or R2 and R3 together form an optionally substituted cyclic structure.
Dependencies are inferred from the claim text.