JPWO2023276873A5

JPWO2023276873A5 -

Info

Publication number: JPWO2023276873A5
Application number: JP2023531896A
Authority: JP
Filing date: 2022-06-24
Publication date: 2023-11-15

Claims

A cyclic olefin polymer having a norbornene skeleton,
The cyclic olefin polymer is a cyclic olefin copolymer or a cyclic olefin ring-opening polymer,
A cyclic olefin polymer characterized by satisfying the following requirement (a).
(Requirement (a))
The cyclic olefin polymer consists of a structural unit (A) that is a chain olefin and a structural unit (B) that contains a cyclic olefin having a norbornene skeleton,
The abundance ratio of meso structure and racemo structure (racemo structure/meso structure) in the chain of the structural unit (B) - the structural unit (A) - the structural unit (B) measured by ¹³ C-NMR is 0.01. ~100.

The cyclic olefin polymer according to claim 1,
The cyclic olefin polymer is a cyclic olefin copolymer,
The cyclic olefin copolymer is
As the structural unit (A), 30 to 80 mol% of a structural unit derived from ethylene or an α-olefin having 3 to 30 carbon atoms;
The structural unit (B) is selected from the group consisting of the following general formula [Z-I], the following general formula [Z-II], the following general formula [Z-III], and the following general formula [Z-IV] Contains 20 to 70 mol% of structural units derived from one or more cyclic monomers,

(In the above formula [Z-I], u is 0 or 1, v is 0 or a positive integer, and w is 0 or 1. R ⁶¹ to R ⁷⁸ and R ^a1 and R ^b1 are each independently contains one or more selected from the group consisting of a hydrogen atom, a halogen atom, and a hydrocarbon group, and R ⁷⁵ to R ⁷⁸ may be bonded to each other to form a monocyclic or polycyclic ring; The monocyclic ring or the polycyclic ring may have a double bond. Also, R ⁷⁵ and R ⁷⁶ or R ⁷⁷ and R ⁷⁸ may form an alkylidene group. )

(In the above formula [Z-II], x and d are 0 or an integer of 1 or more, and y and z are 0, 1 or 2. R ⁸¹ to R ⁹⁹ each independently represent a hydrogen atom or a halogen atom. , and hydrocarbon groups, and the carbon atom to which R ⁸⁹ and R ⁹⁰ are bonded, and the carbon atom to which R ⁹³ is bonded or the carbon atom to which R ⁹¹ is bonded are directly or by the number of carbon atoms. They may be bonded via 1 to 3 alkylene groups.Also, when y=z=0, R ⁹⁵ and R ⁹² or R ⁹⁵ and R ⁹⁹ are bonded to each other to form a monocyclic or polycyclic aromatic (May form a family ring.)

(In the above formula [Z-III], n and m are each independently 0, 1 or 2, and q is 1, 2 or 3. R ¹⁸ to R ³¹ are each independently a hydrogen atom, a fluorine atom A hydrocarbon group having 1 to 20 carbon atoms that may be substituted with a halogen atom excluding fluorine atoms, or a halogen atom excluding fluorine atoms.)

(In the general formula [Z-IV], x is 0 or an integer of 1 or more, and R ¹¹¹ to R ¹¹⁸ are each independently selected from a hydrogen atom, a halogen atom, and a hydrocarbon group. R ¹²¹ to R ¹²⁴ are each independently selected from a hydrogen atom, a halogen atom, and a hydrocarbon group, and two adjacent groups may be bonded to each other to form a monocyclic or polycyclic aromatic ring.)
A cyclic olefin polymer in which the total of the structural unit (A) and the structural unit (B) is 100 mol%.

The cyclic olefin polymer according to claim 1 or 2,
A cyclic olefin polymer further satisfying the following requirement (b).
(Requirement (b))
The ratio of the chain of the structural unit (B) to the structural unit (B) measured by ¹³ C-NMR in the structural unit (B) is 0.1 mol% or more and 20.0 mol% or less.

The cyclic olefin polymer according to claim 1 or 2 ,
A cyclic olefin polymer, wherein the cyclic olefin copolymer or the cyclic olefin ring-opening polymer has a glass transition temperature of 50° C. or more and 250° C. or less, as measured by a differential scanning calorimeter (DSC).

The cyclic olefin polymer according to claim 1 or 2 ,
A cyclic olefin polymer, wherein the cyclic olefin copolymer or the cyclic olefin ring-opening polymer has a glass transition temperature of 50° C. or higher and 180° C. or lower, as measured by a differential scanning calorimeter (DSC).

The cyclic olefin polymer according to claim 1 or 2 ,
A cyclic olefin polymer, wherein the cyclic olefin copolymer or the cyclic olefin ring-opening polymer has an intrinsic viscosity of 0.1 [dL/g] or more and 5.0 [dL/g] or less.

A cyclic olefin polymer composition comprising the cyclic olefin polymer according to claim 1 or 2 .

The cyclic olefin polymer composition according to claim 7,
A cyclic olefin polymer composition used for optical parts, film packaging materials, optical films, or medical parts.

A molded article comprising the cyclic olefin polymer according to claim 1 or 2 .

The molded article according to claim 9,
Molded objects that are optical parts, film packaging materials, optical films, or medical parts.