Synthesis and properties of polysulfones containing thiophene links

Choi, Kil‐Yeong; Jung, Jin Chul; Yi, Mi Hie; Lee, Byung Woon

doi:10.1002/pola.1990.080281123

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…Lee et al investigated the phase structure and rheological properties according to the kneading conditions in a Nylon/PPO composite using Graphene Oxide (GO) [6], and Habaue et al achieved improved physical properties by synthesizing PPO through oxidative coupling polymerization utilizing a copper chloride (CuCl)/pyridine catalyst system [7]. Moreover, Ahn et al explored the fabrication of composite materials by adding Glass Fiber (GF) to mPPO mixed with PS and PA [8], and Choi et al presented the characteristics and uses of mPPO, as well as its current domestic and international status [9]. Liu et al added an MgTiO 3 -Ca 0.7 La 0.2 TiO 3 (MTCLT) ceramic to mPPO, which is a mixture of PPO and High-Impact Poly-Styrene (HIPS), thereby showcasing a material that can be resistant to dielectric loss and applicable to the microwave communication field due to its improved thermal and mechanical properties [10].…”

Section: Introductionmentioning

confidence: 99%

Physical Properties of Modified Polyphenylene Oxide as a Composite Material for Hydrogen Fuel Cell Stack Enclosure Suitable for Injection Molding

2022

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There is an increasing need for securing development technology for suitable materials to obtain more productive and lightweight automobile parts, including hydrogen fuel cell stack enclosures. Due to the poor moldability of Poly-Phenylene Oxide (PPO), which excels in terms of mechanical, thermal, and electrical properties, studies are being actively conducted to commercialize modified-PPO (mPPO). However, there is a lack of studies regarding injection molding analysis for pre-verification of the suitability of injection molding in the process of developing engineering plastic resins. Thus, this study utilized the following procedure: (1) it measured the physical properties of mPPO, (2) it selected sample candidates, (3) it applied the Design Of Experiments (DOE) to conduct an injection molding analysis, and finally, (4) it proposed an enclosure-dedicated mPPO due to its suitability for injection molding. The results of this study demonstrated the excellent moldability of mPPO with a mixing ratio of PPO 50%/Poly-Amide66(PA66) 50% among 16 samples by investigating the fill time, deflection, time to reach ejection temperature, void phenomenon and cycle time. Therefore, mPPO with a mixing ratio of PPO 50%/PA66 50% will exhibit the best moldability and increased productivity in manufacturing enclosures.

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