超支化聚酯是最常见的超支化聚合物。超支化聚酯的有趣特征之一是,它们在线性和末端结构单元上包含未反应的羟基和羧酸基团,可以对其进行后修饰以调节其热,溶解度或机械性能,或制备核-壳型结构。本文报道了通过A 2 + B 3合成一类新型的超支化聚酯2,6-吡啶二甲醛和三羟甲基丙烷三丙烯酸酯的Baylis-Hillman型聚合。Baylis-Hillman聚合反应生成的高功能聚酯不仅在线性和末端结构单元上包含未反应的醛和/或丙烯酸酯基,而且在聚合物主链上还包含化学正交的乙烯基和羟基。使用3-羟基喹核苷作为催化剂,可获得数均分子量高达7500 g / mol和支化度高达0.81的超支化聚合物。为了证明这些超支化聚酯具有多功能性,可作为进一步衍生化的平台,本文介绍了异氰酸苯酯,3-巯基丙酸甲酯和碘代甲烷对羟基,乙烯基和吡啶官能团进行的正交后聚合修饰。
Curable liquids and inkjet inks for food packaging applications
申请人:Agfa Graphics N.V.
公开号:EP2604663A1
公开(公告)日:2013-06-19
A radiation curable liquid including at least one free radical polymerizable monomer or oligomer, at least one diffusion hindered acetalysation catalyst and at least one diffusion hindered hydroxyl containing compound. The radiation curable liquid applied to a substrate prevents migration of very low viscous monomers, such as vinyl ether acrylate monomers, into the substrate.
[EN] CURABLE LIQUIDS AND INKJET INKS FOR FOOD PACKAGING APPLICATIONS<br/>[FR] LIQUIDES DURCISSABLES ET ENCRES À JET D'ENCRE POUR DES APPLICATIONS D'EMBALLAGE ALIMENTAIRE
申请人:AGFA GRAPHICS NV
公开号:WO2013087427A1
公开(公告)日:2013-06-20
A radiation curable liquid including at least one free radical polymerizable monomer or oligomer, at least one diffusion hindered acetalysation catalyst and at least one diffusion hindered hydroxyl containing compound. The radiation curable liquid applied to a substrate prevents migration of very low viscous monomers, such as vinyl ether acrylate monomers, into the substrate.
Functional, hyperbranched polyesters via baylis-hillman polymerization
hyperbranched polyesters via an A2 + B3 type Baylis–Hillman polymerization of 2,6‐pyridinedicarboxaldehyde and trimethylolpropane triacrylate. Baylis–Hillman polymerization generates highly functional polyesters that contain not only unreacted aldehyde and/or acrylate groups at the linear and terminal structural units but also chemically orthogonal vinyl and hydroxyl groups along the polymer backbone. Using
超支化聚酯是最常见的超支化聚合物。超支化聚酯的有趣特征之一是,它们在线性和末端结构单元上包含未反应的羟基和羧酸基团,可以对其进行后修饰以调节其热,溶解度或机械性能,或制备核-壳型结构。本文报道了通过A 2 + B 3合成一类新型的超支化聚酯2,6-吡啶二甲醛和三羟甲基丙烷三丙烯酸酯的Baylis-Hillman型聚合。Baylis-Hillman聚合反应生成的高功能聚酯不仅在线性和末端结构单元上包含未反应的醛和/或丙烯酸酯基,而且在聚合物主链上还包含化学正交的乙烯基和羟基。使用3-羟基喹核苷作为催化剂,可获得数均分子量高达7500 g / mol和支化度高达0.81的超支化聚合物。为了证明这些超支化聚酯具有多功能性,可作为进一步衍生化的平台,本文介绍了异氰酸苯酯,3-巯基丙酸甲酯和碘代甲烷对羟基,乙烯基和吡啶官能团进行的正交后聚合修饰。