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Nonmigrating Equivalent Substitutes for PVC/DOP Formulations as Shown by a TG Study of PVC with Covalently Bound PEO–PPO Oligomers

机译:用共价键合的PEO-PPO低聚物对PVC进行的TG研究表明,PVC / DOP配方的非迁移当量替代物

摘要

Monoamino functionalized ethylenoxide (EO)/propylenoxide oligomers (Jeffamine) are linked chemically to poly(vinyl chloride) (PVC) using trichlorotriazine chemistry in order to prepare nonmigrating internally plasticized materials. The dependence of the plasticizer efficiency on both the number of anchoring points to the chains and the PVC/plasticizer compatibility is investigated using oligomers of different molecular weight and hydrophilic–hydrophobic balance. Hydrophilic oligomers (containing predominantly EO) of molecular weights between 2000 and 5000 g mol exhibit excellent plasticizer efficiency, nearly identical to di-2-ethylhexylphthalate (DOP) in conventional PVC/DOP mixtures and may therefore be used as nonmigrating equivalents for DOP. (Figure presented.).
机译:使用三氯三嗪化学方法将单氨基官能化的环氧乙烷(EO)/环氧丙烷低聚物(Jeffamine)化学连接到聚氯乙烯(PVC),以制备不迁移的内部增塑材料。使用不同分子量和亲水-疏水平衡的低聚物研究增塑剂效率对链的锚固点数量和PVC /增塑剂相容性的依赖性。分子量在2000至5000 g mol之间的亲水性低聚物(主要包含EO)表现出出色的增塑剂效率,与常规PVC / DOP混合物中的邻苯二甲酸二-2-乙基己基酯(DOP)几乎相同,因此可以用作DOP的非迁移等同物。 (图中显示)。

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