HIGH-MOLECULAR-WEIGHT POLYMER SHEET AND METHOD FOR PRODUCING SAME
In a method for producing a high-molecular-weight polymer sheet, when a monomer composition including silver nanowires is polymerized, the monomer composition is allowed to stand in a state in which a thickness direction of the obtained high-molecular-weight polymer sheet before the polymerization is a vertical direction, and the silver nanowires in the monomer composition are oriented in the vertical direction and polymerized.
1 . A high-molecular-weight polymer sheet, comprising:
silver nanowires,
wherein the silver nanowires are oriented in a thickness direction.
2 . The high-molecular-weight polymer sheet according to claim 1 ,
wherein an S value determined from a scattering vector of small-angle X-ray scattering and indicating a degree of orientation in the thickness direction of the silver nanowires is 0.1 to 1.0, and
the S value is determined by the following Equation (1):
S
=
3
C
-
1
2
(
1
)
where C in Equation (1) satisfies Equation (2), and I(θ) in Equation (2) is a scattering intensity at an azimuth θ on a circle whose radius is a scattering vector at which scattering of the silver nanowires determined by a scattering pattern of the small-angle X-ray scattering becomes a maximum value.
C
=
∫
0
π
2
/
(
θ
)
cos
2
θ
sin
θ
d
θ
∫
0
π
2
/
(
θ
)
sin
θ
d
θ
(
2
)
3 . The high-molecular-weight polymer sheet according to claim 1 , wherein the thickness direction is a direction perpendicular to a surface having a largest area among surfaces of the high-molecular-weight polymer sheet.
4 . A method for producing a high-molecular-weight polymer sheet, comprising:
a preparation step of preparing a monomer composition including silver nanowires;
a standing step of allowing the monomer composition to stand horizontally and orienting the silver nanowires in a vertical direction; and
a polymerization step of polymerizing the monomer composition in a state in which the silver nanowires in the monomer composition are oriented in the vertical direction.