Polymer raw material and polymer material

Patent metadata

Field	Value
Publication number	US-9745403-B2
Application number	US-201214357954-A
Country	US
Kind code	B2
Filing date	Nov 13, 2012
Priority date	Nov 17, 2011
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

To provide a polymer material having properties that allow the polymer material to replace a polyimide and a polyamide synthesized from a petroleum raw material, said polymer material being synthesized from a raw material derived from natural molecules. [Solution] This polymer material is obtained by polymerizing a polymer raw material comprising a dimer of 4-amino cinnamic acid or a dimer of a 4-amino cinnamic acid derivative, which are natural molecules, wherein the carboxyl group is protected by an alkyl chain. The TGA curve of a polyamide acid (PAA-1) and a polyimide (PI-1) according to the present invention is shown in FIG. 5.

First claim

The invention claimed is:

1. A polymer material, comprising:
a structure represented by Formula 2,

where X is —OR, —SR, or —NHR;
R is alkyl group, alkenyl group, or aryl group;
Y is an imide bond, an amide bond, or a urea bond;
Z is an organic link; and
n is a positive integer.

2. The polymer material according to claim 1 , wherein the structure represented by Formula 2 has a structure represented by Formula 3,

where R is alkyl group, alkenyl group, or aryl group;
Y is an imide bond, an amide bond, or a urea bond;
Z is an organic link; and
n is a positive integer.

3. The polymer material according to claim 2 , wherein the polymer material is a polyamide having a structure represented by Formula 4,

where R is alkyl group, alkenyl group, or aryl group;
n is a positive integer; and
m is a positive integer.

4. The polymer material according to claim 2 , wherein the polymer material is a polyamide having a structure represented by Formula 5,

where R is alkyl group, alkenyl group, or aryl group;
A represents an aromatic ring or a alicycle; and
n is a positive integer.

5. The polymer material according to claim 2 , wherein the polymer material is a polyamic acid having a structure represented by Formula 6,

where R is alkyl group, alkenyl group, or aryl group;
A represents an aromatic ring or a alicycle; and
n is a positive integer.

6. The polymer material according to claim 2 , wherein the polymer material is a polyimide having a structure represented by Formula 7,

where R is alkyl group, alkenyl group, or aryl group;
A represents an aromatic ring or a alicycle; and
n is a positive integer.

7. The polymer material according to claim 2 , wherein the polymer material is a polyurea having a structure represented by Formula 8,

where R is alkyl group, alkenyl group, or aryl group;
n is a positive integer; and
m is a positive integer.

8. The polymer material according to claim 2 , wherein the polymer material is a polyurea having a structure represented by Formula 9,

where R is alkyl group, alkenyl group, or aryl group;
A represents an aromatic ring or a alicycle; and
n is a positive integer.

9. The polymer material according to claim 2 , wherein the polymer material is a polyimide having a structure represented by Formula 10,

where R is alkyl group, alkenyl group, or aryl group; and
n is a positive integer.

10. A manufacturing method of the polymer material according to claim 1 , the method comprising:
reacting an amino group in a structure represented by Formula 1,

where X is —OR, —SR, or —NHR; and
R is alkyl group, alkenyl group, or aryl group,
thereby forming an imide bond, an amide bond, or a urea bond.

11. A recycle method of the polymer material according to claim 1 , the method comprising:
irradiating ultraviolet to the polymer material, or hydrolyzing the polymer material with an acid.

Assignees

• Japan Advanced Inst Of Science And Tech
• Japan Science & Tech Agency

Inventors

• Kaneko Tatsuo
• MIYAZATO Akio
• Tateyama Seiji
• SUVANNASARA Phruetchika
• OKA Yuuki

Classifications

• C08G18/3825

  containing amide groups (C08G18/3821 takes precedence) · CPC title

• C08J11/10

  by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation (depolymerisation to the original monomer C07) · CPC title

• C08G18/75

  cycloaliphatic · CPC title

• C08G18/73

  acyclic · CPC title

• C08G69/28

  Preparatory processes · CPC title