Polymers and processes for preparing the polymers

Patent metadata

Field	Value
Publication number	US-9796812-B2
Application number	US-201514939160-A
Country	US
Kind code	B2
Filing date	Nov 12, 2015
Priority date	May 13, 2013
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

Provided is a polymer obtained by homopolymerizing a lactone monomer. The polymer contains a structural unit having a lactone ring containing three or more carbon atoms, wherein at least one of the carbon atoms, except for C of —C(═O)O—, of the lactone ring forms a part of a main chain; and wherein at least one of the carbon atoms, except for C of —C(═O)O—, which forms the lactone ring and is other than the carbon atom(s) forming a part of the main chain is bridged with an atom of the main chain.

First claim

What is claimed is:

1. A polymer comprising a structural unit having a lactone ring containing three or more carbon atoms,
wherein at least one of the carbon atoms, except for C of —C(═O)O—, of the lactone ring forms a part of a main chain; and
wherein at least one of the carbon atoms, except for C of —C(═O)O—, which forms the lactone ring and is other than the carbon atom(s) forming a part of the main chain is bridged with an atom of the main chain.

2. The polymer according to claim 1 , comprising a structural unit represented by Formula (I-a):

wherein R 1 to R 10 each independently represent a monovalent organic group, a hydrogen atom or a hydrogen atom.

3. The polymer according to claim 1 , comprising a structural unit represented by Formula (I):

wherein R 1 to R 5 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom.

4. The polymer according to claim 1 , further comprising a structural unit represented by Formula (II-a) and/or a structural unit represented by Formula (III-a):

wherein, in Formula (II-a), R 1 to R 10 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom; and in Formula (III-a), R 1 to R 10 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom.

5. The polymer according to claim 1 , further comprising a structural unit represented by Formula (II) and/or a structural unit represented by Formula (III);

wherein, in Formula (II), R 1 to R 5 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom; and in Formula (III), R 1 to R 5 each independently represent a monovalent organic group or a hydrogen atom.

6. The polymer according to claim 1 , comprising a structural unit represented by Formula (I-a), a structural unit represented by Formula (II-a) and a structural unit represented by Formula (III-a):

wherein, in Formula (I-a), R 1 to R 10 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom; in Formula (II-a), R 1 to R 10 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom; and in Formula (III-a), R 1 to R 10 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom.

7. The polymer according to claim 1 , comprising a structural unit represented by Formula (I), a structural unit represented by Formula (II) and a structural unit represented by Formula (III):

wherein, in Formula (I), R 1 to R 5 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom; in Formula (II), R 1 to R 5 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom; and in Formula (III), R 1 to R 5 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom.

8. A polymer comprising at least one of a structural unit represented by Formula (I-a), a structural unit represented by Formula (II-a) and a structural unit represented by Formula (III-a):

wherein, in Formula (I-a), R 1 to R 10 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom; in Formula (II-a), R 1 to R 10 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom; and in Formula (III-a), R 1 to R 10 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom.

9. The polymer according to claim 1 , obtained by radically homopolymerizing a compound represented by Formula (IV-a):

wherein, in Formula (IV-a), R 1 to R 10 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom.

10. The polymer according to claim 1 , obtained by radically homopolymerizing a compound represented by Formula (IV):

wherein R 1 to R 5 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom.

11. The polymer according to claim 1 , which has a thermal decomposition temperature (Td) of 220° C. or more as determined by thermogravimetry (TG) when it is heated at 10° C./min.

12. A varnish comprising the polymer according to claim 1 .

13. A molded article comprising the polymer according to claim 1 .

14. A process for preparing a polymer, comprising polymerizing a starting monomer including a compound represented by Formula (IV-a) in such a manner that at least one of the rates of thermal isomerization and degradative chain transfer are lower than the rate of the homopolymerization reaction of the monomer:

wherein R 1 to R 10 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom;
wherein the polymer is a polymer comprising a structural unit having a lactone ring containing three or more carbon atoms,
at least one of the carbon atoms, except for C of —C(═O)O—, of the lactone ring forms a part of a main chain; and
at least one of the carbon atoms, except for C of —C(═O)O—, which forms the lactone ring and is other than the carbon atom(s) forming a part of the main chain is bridged with an atom of the main chain.

15. The process for preparing a polymer according to claim 14 , comprising polymerizing a starting monomer including a compound represented by Formula (IV) in such a manner that at least one of the rates of thermal isomerization and degradative chain transfer are lower than the rate of the homopolymerization reaction of the monomer:

wherein R 1 to R 5 each independently represent a monovalent organic group, a halogen atom or a hydrogen atom;
wherein the polymer is a polymer comprising a structural unit having a lactone ring containing three or more carbon atoms,
at least one of the carbon atoms, except for C of —C(═O)O—, of the lactone ring forms a part of a main chain; and
at least one of the carbon atoms, except for C of —C(═O)O—, which forms the lactone ring and is other than the carbon atom(s) forming a part of the main chain is bridged with an atom of the main chain.

16. The process for preparing a polymer according to claim 14 , comprising radically polymerizing the starting monomer in the presence of at least one Bronsted acid or Lewis acid or polymerizing it by emulsion polymerization.

17. A process for preparing a polymer, comprising synthesizing it in one pot from a 1,3-diene compound and carbon dioxide,
wh

Assignees

• Univ Tokyo
• Fujifilm Corp

Inventors

• Hosokawa Takafumi
• Yoshitani Toshihide
• Ito Shingo
• Nozaki Kyoko
• Nakano Ryo

Classifications

• C08F24/00 Primary

  Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a heterocyclic ring containing oxygen (cyclic esters of polyfunctional acids C08F18/00; cyclic anhydrides of unsaturated acids C08F20/00, C08F22/00) · CPC title

• C08G63/08 Primary

  Lactones or lactides · CPC title

• C09D133/06

  of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical · CPC title

• C09D167/04

  Polyesters derived from hydroxycarboxylic acids, e.g. lactones (C09D167/06 takes precedence) · CPC title