Polymer, production method for same, and molded article

2:

• The method according to claim 1, wherein the polymerization of the starting material composition (I) is performed by suspension polymerization.

3:

• The method according to claim 1, wherein the macromonomer (a) is obtained by polymerizing a starting material composition (II) comprising:
• a monomer composition (II-1) comprising a (meth)acrylic acid ester;
• and a cobalt chain transfer agent.

4:

• The method according to claim 3, wherein the monomer composition (II-1) comprises 85 to 99% by mass of methacrylic acid ester and 1 to 15% by mass of acrylic acid ester with respect to the total mass of the monomer composition (II-1).

8:

• The method according to claim 1, wherein the vinyl monomer (b) comprises a (meth)acrylic acid ester.

9:

• A polymer produced by the method according to claim 1.

10:

• The polymer according to claim 9, wherein a molecular weight distribution (mass average molecular weight/number average molecular weight) is 23 or less.

11:

• The polymer according to claim 9, wherein a mass average molecular weight is 100,000 or more.

12:

• The polymer according to claim 9, wherein a 5% by mass reduction temperature is 280° C. or higher.

13:

• The polymer according to claim 9, wherein a melt index retention rate is 95 to 110%.

14:

• The polymer according to claim 9, wherein an elastic modulus is 1,000 MPa or less.

15:

• A molded article obtained by molding a molding material comprising the polymer according to claim 9.

16:

• The method according to claim 2, wherein the vinyl monomer (b) comprises a (meth)acrylic acid ester.

17:

• The method according to claim 3, wherein the vinyl monomer (b) comprises a (meth)acrylic acid ester.

18:

• The method according to claim 4, wherein the vinyl monomer (b) comprises a (meth)acrylic acid ester.

19:

• The method according to claim 5, wherein the vinyl monomer (b) comprises a (meth)acrylic acid ester.

20:

• The method according to claim 6, wherein the vinyl monomer (b) comprises a (meth)acrylic acid ester.

21:

• The method according to claim 7, wherein the vinyl monomer (b) comprises a (meth)acrylic acid ester.