9051-31-4Relevant articles and documents
Method for synthesizing alkyl (meth) acrylate
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Paragraph 0032-0073; 0115-0134, (2021/12/08)
The invention discloses a synthesis method of alkyl (meth) acrylate, and belongs to the field of organic chemical synthesis. The synthesis method of the present invention employs a heterogeneous solid acid catalyst. The polymerization inhibitor and (meth) acrylic acid were put into the reaction kettle and heated to 50 - 90 °C, and an epoxide was introduced into the reaction kettle for reaction. The reaction solution is filtered to remove the homogeneous solid acid catalyst and the rectification to obtain the target product. The synthesis method not only can improve the selectivity of a target product (methyl) acrylic acid alkyl ester, but also can effectively inhibit the generation of high-boiling-point double esters of by-products generated by the addition of bis (methyl) acrylic acid.
Acrylate monomer having hydrophilic end group and a method for preparing the same
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Paragraph 0116-0118, (2021/11/02)
More particularly, the present invention relates to an acrylate monomer having a high-purity hydrophilic terminal group which does not contain unreacted 1 water or undesirable by-products, and a method for producing the acrylate monomer. These acrylate monomers are substantially free of polymerization inhibitors. Chemical Formula 1. In Chemical Formula 1, R. 1 Chem. R. 2 Chem. R. 3 May be H, or linear, branched or cyclic C, independently of each other. 1 -C12 alkyl group. R4 Is linear, branched or cyclic C. 1 -C12 alkyl Or C1 -C12 It is alkoxy group, wherein alkyl group carbon atoms can be unsubstituted or substituted with oxygen atoms, n Is an integer selected from 1 and 10.
CURED PRODUCT, OPTICAL MEMBER, LENS, COMPOUND, AND CURABLE COMPOSITION
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Paragraph 0254-0256, (2020/07/14)
According to the present invention, a cured product obtained by curing a curable composition including a compound represented by General Formula 1, in which a birefringence Δn (587 nm) is 0.00≤Δn (587 nm)≤0.01, is provided, and this cured product is suitable for manufacturing an optical member. [in-line-formulae]Pol1-Sp1-L1-Ar-L2-Sp2-Pol2??(General Formula 1)[/in-line-formulae] In formula, Ar is an aromatic ring group represented by General Formula 2-2 and the like. In formula, Z1 and Z2 each represent a hydrogen atom, a methyl group, and the like; A1 and A2 each represent —S— and the like; X represents C(Rz)2 and the like (where Rz is a substituent, and two Rz's may form a ring); L1 and L2 each represent a single bond, —O—, —OC(═O)—, —OC(═O)O—, —OC(═O)NH—, and the like; Sp1 and Sp2 each represent a single bond or a divalent linking group; Pol1 and Pol2 each represent a hydrogen atom or a polymerizable group; and a compound represented by General Formula 1 has at least one polymerizable group.