Terminal-modified soluble polyfunctional vinyl aromatic copolymer, and curable resin composition and optical waveguide produced using same

A vinyl aromatic and aromatic compound technology, applied in synthetic resin layered products, optical waveguide light guides, chemical instruments and methods, etc.

Active Publication Date: 2017-08-29
NIPPON STEEL CHEM &MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The optical waveguide materials described in Patent Document 8 and Patent Document 9 can form a core pattern by exposure and development, have transparency at a wavelength of 850 nm, and have good light propagation loss after a high-temperature and high-humidity storage test, but have no heat resistance. performance evaluation, for example, there is no specific description of test results such as light transmission loss after reflow soldering test
[0016] In addition, the optical waveguide material described in Patent Document 10 exhibits excellent optical transmission loss and good heat resistance, but is fragile and cannot satisfy the toughness requirements.
[0017] In addition, the optical waveguide material described in Patent Document 11 has transparency at a wavelength of 850 nm and is excellent in toughness, but there is no evaluation of heat resistance, for example, no test results on light propagation loss after a reflow test, etc. There is no specific description of the environmental reliability evaluation, for example, there is no specific description of the test results such as the light transmission loss after the high-temperature and high-humidity storage test or the temperature cycle test.

Method used

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  • Terminal-modified soluble polyfunctional vinyl aromatic copolymer, and curable resin composition and optical waveguide produced using same
  • Terminal-modified soluble polyfunctional vinyl aromatic copolymer, and curable resin composition and optical waveguide produced using same
  • Terminal-modified soluble polyfunctional vinyl aromatic copolymer, and curable resin composition and optical waveguide produced using same

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Embodiment

[0391] Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited to these Examples. In addition, the part in each example is a weight part, and the measurement of a physical property was performed by the method shown below.

[0392] 1) Molecular weight and molecular weight distribution of the copolymer (soluble polyfunctional aromatic copolymer)

[0393] Molecular weight and molecular weight distribution were measured using a gel permeation chromatograph (Gel Permeation Chromatograph, GPC) (manufactured by Tosoh, HLC-8120GPC), using tetrahydrofuran as a solvent, with a flow rate of 1.0ml / min and a column temperature of 38°C, using a single Calibration curves for dispersed polystyrene were performed.

[0394] 2) The structure of the copolymer

[0395] Using the JNM-LA600 nuclear magnetic resonance spectrometer manufactured by JEOL, using 13 C-Nuclear Magnetic Resonance (NMR) and 1 H-NMR analysis to determine. use chloroform-d 1...

Synthetic example 1

[0406] 1.28 moles (182.7 mL) of divinylbenzene (a mixture of 1,4-divinylbenzene and 1,3-divinylbenzene, the same applies to the following examples), ethylvinylbenzene (1-ethyl- A mixture of 4-vinylbenzene and 1-ethyl-3-vinylbenzene (the same applies to the following examples) 0.97 moles (137.8 mL), 2.00 moles (323.2 mL) of tert-butyl methacrylate, and 300 mL of toluene were added to 2.0 In the reactor of L, 50 millimoles of boron trifluoride diethyl ether complexes were added at 50 degreeC, and it reacted for 4 hours. After stopping the polymerization with an aqueous sodium bicarbonate solution, the oil layer was washed three times with pure water, devolatilized under reduced pressure at 60° C., and a polymer was recovered. The obtained polymer was weighed, and it was confirmed that 234.6 g of copolymer A was obtained.

[0407] Mn of the obtained copolymer A was 842, Mw was 3640, and Mw / Mn was 4.32. by carrying out 13 C-NMR and 1 In H-NMR analysis, resonance lines derived ...

Synthetic example 2

[0411] Put 1.28 moles (182.7 mL) of divinylbenzene, 0.97 moles (137.8 mL) of ethyl vinylbenzene, 2.00 moles (289.6 mL) of tert-butyl acrylate, and 300 mL of toluene into a 2.0 L reactor. 50 mmol of boron trifluoride diethyl ether complex was added, and the reaction was performed for 4 hours. After stopping the polymerization with an aqueous sodium bicarbonate solution, the oil layer was washed three times with pure water, devolatilized under reduced pressure at 60° C., and a polymer was recovered. The obtained polymer was weighed, and it was confirmed that 215.3 g of copolymer B was obtained.

[0412] Mn of the obtained copolymer B was 952, Mw was 4490, and Mw / Mn was 4.72. by carrying out 13 C-NMR and 1 In H-NMR analysis, resonance lines derived from terminal groups of tert-butyl acrylate were observed in copolymer B. The introduced amount (c1) of structural units derived from tert-butyl acrylate in the soluble polyfunctional vinyl aromatic polymer calculated from the elem...

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Abstract

Provided are: a soluble polyfunctional vinyl aromatic copolymer improved in heat resistance, thermal decomposition resistance, solubility in solvents, processability and compatibility with specific resins; and a curable resin composition containing the copolymer. A terminal-modified soluble polyfunctional vinyl aromatic copolymer which is a copolymer produced by polymerizing a divinyl aromatic compound (a), a monovinyl aromatic compound (b) and a (meth)acrylic acid ester compound (c) in the presence of at least one catalyst (d) selected from the group consisting of a Lewis acid catalyst, an inorganic strong acid and an organic sulfonic acid and which has a terminal group derived from the (meth)acrylic acid ester compound (c) at some of the terminals of the copolymer.

Description

technical field [0001] The invention relates to a novel end-modified soluble polyfunctional vinyl aromatic copolymer and curable resin composition with improved heat resistance, compatibility and toughness. In particular, the present invention relates to a curable resin composition containing a novel terminal-modified soluble polyfunctional vinyl aromatic copolymer and useful as a substrate material in the field of high-end electronic equipment requiring high reliability, and its hardening In addition, the present invention relates to a resin composition for forming an optical waveguide excellent in transparency, light transmission loss, thermal discoloration resistance, environmental reliability and light transmission loss, and an optical waveguide forming resin composition. Resin films and optical waveguides using them. Background technique [0002] With the increase in the amount of information communication in recent years, information communication in the high-frequenc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F8/14B32B15/08B32B27/26B32B27/30B32B27/38C08F4/14C08F20/10C08F212/06C08F212/36C08F290/02C08J5/18C08L63/00
CPCB32B15/08B32B27/26B32B27/30B32B27/38C08F20/10C08F212/06C08F212/36C08F4/14C08J5/18C08F8/14C08F290/02C08L63/00C08F2/38G02B6/10
Inventor 川辺正直尼蓝詹·库马·史瑞斯塔
Owner NIPPON STEEL CHEM &MATERIAL CO LTD
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