High‐Temperature and High‐Energy‐Density Dipolar Glass Polymers Based on Sulfonylated Poly(2,6‐dimethyl‐1,4‐phenylene oxide),Angewandte Chemie International Edition

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High‐Temperature and High‐Energy‐Density Dipolar Glass Polymers Based on Sulfonylated Poly(2,6‐dimethyl‐1,4‐phenylene oxide)
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-01-16 , DOI: 10.1002/anie.201710474
Zhongbo Zhang ₁ , David H. Wang _{2,

3} , Morton H. Litt ₁ , Loon-Seng Tan ₂ , Lei Zhu ₁

Affiliation

A new class of high‐temperature dipolar polymers based on sulfonylated poly(2,6‐dimethyl‐1,4‐phenylene oxide) (SO₂‐PPO) was synthesized by post‐polymer functionalization. Owing to the efficient rotation of highly polar methylsulfonyl side groups below the glass transition temperature (T_g≈220 °C), the dipolar polarization of these SO₂‐PPOs was enhanced, and thus the dielectric constant was high. Consequently, the discharge energy density reached up to 22 J cm⁻³. Owing to its high T_g , the SO₂‐PPO₂₅ sample also exhibited a low dielectric loss. For example, the dissipation factor (tan δ) was 0.003, and the discharge efficiency at 800 MV m⁻¹ was 92 %. Therefore, these dipolar glass polymers are promising for high‐temperature, high‐energy‐density, and low‐loss electrical energy storage applications.

中文翻译：

基于磺酰化聚（2,6-二甲基-1,4-苯撑氧）的高温高能密度双极玻璃聚合物

通过后聚合物官能化合成了基于磺酰化聚（2,6-二甲基-1,4-苯撑氧）（SO ₂ -PPO）的新型高温偶极聚合物。由于低于玻璃化转变温度高极性甲基磺酰基侧基的高效旋转（Ť_克≈220℃），这些SO的偶极极化₂ -PPOs增强，并且因此介电常数高。结果，放电能量密度达到22Jcm ^-3。由于T _g高，SO ₂ -PPO ₂₅样品还表现出低介电损耗。例如，耗散因子（tanδ）为0.003，并且在800MV m ^-1时的放电效率为92％。因此，这些偶极玻璃聚合物有望用于高温，高能量密度和低损耗的电能存储应用。

更新日期：2018-01-16

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