Additive and free‐volume effects on the refractive index of a thiol‐ene polymer network,Journal of Applied Polymer Science

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Additive and free‐volume effects on the refractive index of a thiol‐ene polymer network
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-06-27 , DOI: 10.1002/app.49544
Edmundo B. D. S. Filho ₁ , Yue Su ₁ , Mamoru Takashina ₁ , Gary Fowler ₂ , Po‐Hsiu Chien ₁ , Albert E. Stiegman ₁

Affiliation

A series of hard, transparent, thermoset polymer samples containing tetravinylsilane (TVS) and 1,3‐benzenedithiol (BDT) with varying loadings of zirconium oxide clusters Zr₆(OH)₄O₄(OMc)₁₂ (ZOC) were synthesized. Resulting polymers exhibited a higher refractive index (n) than the parent polymer containing only the monomers TVS and BDT. The refractive index reached a maximum value of 1.711 at a ZOC loading of 3 wt% and then decreased as the ZOC concentration in the polymer matrix increased. The refractive index of ZOC was determined to be 1.540 using the Becke line method. Because the refractive index of ZOC is lower than that of the TVS–BDT polymer matrix, the finding that the incorporation of small quantities of ZOC can increase the refractive index of the TVS–BDT polymer composite was unexpected and is accounted for by the effects of ZOC on the packing efficiency of the composite.

中文翻译：

加和自由体积对硫醇烯聚合物网络折射率的影响

合成了一系列硬质，透明，热固性聚合物样品，其中包含四乙烯基硅烷（TVS）和1,3-苯二硫醇（BDT）以及氧化锆簇Zr ₆（OH）₄ O ₄（OMc）₁₂（ZOC）的不同负载。所得聚合物表现出较高的折射率（n），而不是仅包含单体TVS和BDT的母体聚合物。当ZOC含量为3 wt％时，折射率达到最大值1.711，然后随着聚合物基质中ZOC浓度的增加而降低。使用Becke线法将ZOC的折射率确定为1.540。由于ZOC的折射率低于TVS–BDT聚合物基体的折射率，因此发现少量ZOC可以增加TVS–BDT聚合物复合材料的折射率这一发现是出乎意料的，这是由以下因素造成的： ZOC对复合材料的包装效率。

更新日期：2020-06-27

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