Design and synthesis of poly(arylene ether sulfone)s with high glass transition temperature by introducing biphenylene groups,Polymer International

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Design and synthesis of poly(arylene ether sulfone)s with high glass transition temperature by introducing biphenylene groups
Polymer International ( IF 2.9 ) Pub Date : 2020-06-28 , DOI: 10.1002/pi.6071
Xin Liu ₁ , Yanwei Gao ₁ , Xuanbo Zhu ₁ , Yingshuang Shang ₁ , Zengduo Cui ₁ , Qixing Yan ₁ , Haibo Zhang ₁

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Two novel poly(arylene ether sulfone)s with high biphenylene content (BDS‐PES and BDS‐PDBES) are prepared by nucleophilic substitution polymerization of synthesized 4,4′‐bis(4‐hydroxyphenyl)diphenyl sulfone (BDS) with 4,4′‐sulfonylbis(fluorobenzene) and 4,4‐bis[(4‐chlorophenyl)sulfonyl], respectively. The prepared polymers show high glass transition temperature and excellent high‐temperature mechanical properties. The glass transition temperature of BDS‐PDBES with higher biphenylene content is as high as 300 °C, and BDS‐PDBES can still maintain its 30% storage modulus at 295 °C. In addition, the two novel polymers also show excellent thermal stability (T_d5 = 526 °C), high elongation at break (ε ≈ 20%), good tensile strength (73 MPa) and modulus (1.73 GPa) and good thermal conductivity (λ_300°C = 0.28 W ·m⁻¹ ·K⁻¹).

中文翻译：

引入亚联苯基的高玻璃化转变温度聚（亚芳基醚砜）的设计与合成

通过合成的4,4'-双（4-羟基苯基）二苯砜（BDS）与4,4的亲核取代聚合反应制备了两种新型的具有高亚联苯含量的聚（亚芳基醚砜）（BDS-PES和BDS-PDBES）分别是′-磺酰基双（氟苯）和4,4-双[（4-氯苯基）磺酰基]。制备的聚合物显示出高的玻璃化转变温度和优异的高温机械性能。具有较高联苯含量的BDS-PDBES的玻璃化转变温度高达300°C，而BDS-PDBES在295°C时仍可以保持其30％的储能模量。此外，这两种新型聚合物还表现出出色的热稳定性（T _d5 = 526°C），高断裂伸长率（ε ≈20％），良好的拉伸强度（73 MPa）和模量（1.73 GPa）和良好的导热性（λ300 _°C = 0.28 W·m ^-1 ·K ^-1）。

更新日期：2020-06-28

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