An acrylic ester compound represented by the general formula (1):
1
wherein, R
1
and R
2
represent independently a hydrogen atom, an alkyl group which may have a substituent, an aromatic alkyl group which may have a substituent or an aromatic residue which may have a substituent, respectively; R
3
represents a hydrogen atom or an alkyl group; A represents a divalent organic group; and X represents a sulfur atom or an oxygen atom; provided that when X is an oxygen atom, R
1
represents an aromatic residue that may have a substituent, a polymerizable composition comprising the compound, and a cured article and optical components obtained by polymerizing the polymerizable composition.
Developing non-isocyanate urethane-methacrylate photo-monomers for 3D printing application
作者:Neelima Singh、Hadi Bakhshi、Wolfdietrich Meyer
DOI:10.1039/d0ra06388f
日期:——
Synthesis of urethane-methacrylate photo-monomers via a non-isocyanate route for 3D printing of flexible biomedical materials.
通过非异氰酸酯途径合成脲酯-甲基丙烯酸酯光敏单体,用于柔性生物医用材料的3D打印。
PREPARATION OF NON-ISOCYANATE URETHANE (METH) ACRYLATES FOR URETHANE FUNCTIONAL LATEX
申请人:Soucek Mark D.
公开号:US20160280807A1
公开(公告)日:2016-09-29
A urethane-functional (meth)acrylate monomer is provided that is defined by the formula
where R
1
is a monovalent organic group, R
2
is a hydrogen atom or a monovalent organic group, and R
3
is a hydrogen atom or an alkyl group. The urethane-functional (meth)acrylate monomer may be polymerized and advantageously provides improved mechanical properties such as tensile modulus, tensile strength and elongation-at-break tensile modulus, tensile strength and elongation-at-break.
The present invention provides an acrylic ester compound represented by formula (1), a polymerizable composition containing the acrylic ester compound, and a cured product and an optical component obtained by polymerizing the polymerizable composition:
1
(wherein “a” is an integer of 0 to 4; R
1
is a directly bonded single bond, an alkylene group, an aralkylene group or arylene group which may have a substituent, or a —Y
3
—S—R
4
—S—Y
4
— group (R
4
is an alkylene group, an aralkylene group or an arylene group; and Y
3
and Y
4
are each an alkylene group); R
2
and R
3
are each a hydrogen atom or an alkyl group; X
1
and X
2
are each an oxygen atom or a sulfur atom; and Y
1
and Y
2
are each an alkylene group which may contain an oxygen atom or a sulfur atom).
Process for Preparing Polymers in Aqueous Solvents
申请人:Kim Son Nguyen
公开号:US20090010865A1
公开(公告)日:2009-01-08
The present invention relates to methods of producing polymers which comprise, in copolymerized form, 50-95% by weight of at least one ester of (meth)acrylic acid, 5-50% by weight of at least one olefinically unsaturated, free-radically polymerizable anionogenic or anionic compound and 0 to 30% by weight of at least one further free-radically polymerizable compound by free-radical polymerization in an alcohol-comprising solution, where the polymerization initiator used is at least one water-soluble initiator.