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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and application of water-based urethane acrylate crosslinking agent containing unsaturated group
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Synthesis and application of water-based urethane acrylate crosslinking agent containing unsaturated group

机译：含不饱和基团的水性聚氨酯丙烯酸酯交联剂的合成及应用

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In this study, we synthesized 1,1,1-trimethlyolpropane (TMP)-based diol which has a pendant anionic group and a reactive double bond in the pendant cyclic ring. Then, a water-based urethane acrylate crosslinking agent (CA) was prepared from isophrone diisocyanate (IPDI), 2-hydroxyethyl acrylate (2-HEA), and a low molecular weight diol bearing pendant carboxylic acid. The CA content was varied in order to investigate the influence of the added content on the mechanical and dynamic mechanical properties. The diol used in this study was TMP-cis-1,2,3,6-tetrahydrophthalic anhydride (TPA) which was synthesized from the esterification reaction of TMP with TPA. This diol was liquid at room temperature. As the CA increased, the initial modulus and elongation at break decreased. Also, increase of the rubbery plateau modulus was observed by dynamic mechanical analysis (DMA). This result was believed to result from an increase in the crosslinking density in the mixtures. Shift of the T-gh to a higher temperature was also observed by DMA. This is due to the increased hard segments and the phase separation. (C) 2000 John Wiley & Sons, Inc. [References: 17]
机译：在这项研究中，我们合成了基于1,1,1-三羟甲基丙烷（TMP）的二醇，该二醇在侧链上具有一个阴离子侧基和一个反应性双键。然后，由异佛尔酮二异氰酸酯（IPDI），丙烯酸2-羟乙酯（2-HEA）和带有侧链羧酸的低分子量二醇制备水基氨基甲酸酯丙烯酸酯交联剂（CA）。为了研究添加的含量对机械和动态机械性能的影响，改变了CA含量。在这项研究中使用的二醇是TMP-顺式1、2、3、6-四氢邻苯二甲酸酐（TPA），它是由TMP与TPA的酯化反应合成的。该二醇在室温下为液体。随着CA的增加，初始模量和断裂伸长率降低。另外，通过动态力学分析（DMA）观察到橡胶平台弹性模量增加。认为该结果是由于混合物中交联密度的增加所致。通过DMA也观察到T-gh向更高温度的转变。这是由于增加了硬段和相分离。 （C）2000 John Wiley＆Sons，Inc. [参考：17]

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