Phthalate plasticizers covalently linked to PVC via copper-free or copper catalyzed azide-alkyne cycloadditions
Phthalate plasticizers covalently linked to PVC via copper-free or copper catalyzed azide-alkyne cycloadditions
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DOI：
10.1016/j.polymer.2016.12.014
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发表时间：
2017-01-27
期刊：
影响因子：
4.6
通讯作者：
Braslau, Rebecca
中科院分区：
文献类型：
--
作者：
Earla, Aruna;Li, Longbo;Braslau, Rebecca
PVC 的增塑是通过无铜（热）或铜催化的叠氮-炔环加成共价连接邻苯二甲酸酯衍生物来进行的。合成了邻苯二甲酸二(2-乙基己基)酯衍生物（DEHP-醚和DEHP-酯）并以两种不同的密度添加到PVC上。改性PVC的玻璃化转变温度随着增塑剂含量的增加而降低。 PVC-DEHP-醚的玻璃化转变温度低于 PVC-DEHP-酯，这反映出醚与酯连接体相比具有更高的柔韧性。 (C) 2017 Elsevier Ltd. 保留所有权利。
Plasticization of PVC was carried out by covalently linking phthalate derivatives via copper-free (thermal) or copper catalyzed azide-alkyne cycloadditions. Di(2-ethylhexyl) phthalate derivatives (DEHP-ether and DEHP-ester) were synthesized and appended to PVC at two different densities. The glass transition temperatures of the modified PVC decreased with increasing content of plasticizer. PVC-DEHP-ether gave lower glass transition temperatures than PVC-DEHP-ester, reflecting the enhanced flexibility of the ether versus ester linker. (C) 2017 Elsevier Ltd. All rights reserved.