Optical analysis for heterogeneous medium
First Claim
1. A polyketone comprising repeating units, 95-100 mole % of which are 1-oxotrimethylene represented by formula (1) and having an intrinsic viscosity of 2.5-20 dl/g, wherein the content of Pd element is 0-20 ppm, terminal structures include an alkyl ester group (terminal group A) represented by the formula (2) and an alkyl ketone group (terminal group B) represented by formula (3), and the equivalent ratio of terminal group A/terminal group B is 0.1-8.0:
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Abstract
This optical analysis method comprises a first step of making light having a known intensity I0 at a known wavelength incident on a medium; a second step of measuring an optical intensity upon reflection or optical intensity upon transmission emitted from the medium; a third step of executing the first and second steps at a plurality of wavelengths and recording the optical intensity as a measurement result; and a fourth step of calculating a target physical quantity by a predetermined arithmetic operation utilizing a known physical quantity stored in a database and the optical intensity.
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Citations
25 Claims
- 1. A polyketone comprising repeating units, 95-100 mole % of which are 1-oxotrimethylene represented by formula (1) and having an intrinsic viscosity of 2.5-20 dl/g, wherein the content of Pd element is 0-20 ppm, terminal structures include an alkyl ester group (terminal group A) represented by the formula (2) and an alkyl ketone group (terminal group B) represented by formula (3), and the equivalent ratio of terminal group A/terminal group B is 0.1-8.0:
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9. A polyketone molded product having repeating units, 95-100 mol % of which are 1-oxotrimethylene represented by the formula (1) and having an intrinsic viscosity of 2.5-20 dl/g, wherein the content of Pd element is 0-20 ppm and terminal structures include an alkyl ester group (terminal group A) represented by the formula (2) and an alkyl ketone group (terminal group B) represented by the formula (3), and the equivalent ratio of terminal group A/terminal group B is 0.1-8.0:
- 10. A polyketone fiber having repeating units, 95-100 mol % of which are 1-oxotrimethylene represented by the formula (1) and having an intrinsic viscosity of 2.5-20 dl/g, wherein the content of Pd element is 0-20 ppm and the terminal structures include an alkyl ester group (terminal group A) represented by the formula (2) and an alkyl ketone group (terminal group B) represented by the formula (3), and the equivalent ratio of terminal group A/terminal group B is 0.1-8.0:
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15. A method for producing a polyketone having an intrinsic viscosity of 2.5-20 dl/g by copolymerizing carbon monoxide and an ethylenically unsaturated compound, wherein the copolymerization is carried out in the presence of a metal complex catalyst obtained by reacting the following compounds (a)-(c), in the following liquid medium (d), and under the following conditions (e):
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(a) a palladium compound, (b) a bidentate ligand having an atom of Group 15 elements, (c) an acid having a pKa of 4 or less, (d) a liquid medium containing an alcohol of 1-6 carbon atoms and water and having a water content, as represented by the following Expression 1, of 10-500,000 ppm, (e) a polymerization pressure P of 5 MPa or higher and a polymerization temperature T of 50-200°
C.,(the volumes in the denominator of the right side are values at 25°
C.). - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for producing a polyketone having an intrinsic viscosity of 3.0-20 dl/g by copolymerizing carbon monoxide and an ethylenically unsaturated compound, wherein the polymerization activity is 10 kg/g-Pd·
- hr or higher.
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25. A method for producing a polyketone having an intrinsic viscosity of 2.5-20 dl/g by copolymerizing carbon monoxide and an ethylenically unsaturated compound, wherein the polymerization activity is 20 kg/g-Pd·
- hr or higher and the catalyst efficiency (kg/g-Pd) expressed by the product of the polymerization activity and the polymerization time (hr) is 50 or higher.
Specification