Preparation of planar and hydrophobic benzocyclobutene‐based dielectric material from biorenewable rosin

编号 020023903

推送时间 20200518

研究领域 林产化工 

年份 2020 

类型 期刊 

语种 英语

标题 Preparation of planar and hydrophobic benzocyclobutene‐based dielectric material from biorenewable rosin

来源期刊 Journal of Applied Polymer Science

期 第239期

发表时间 20191216

关键词 biomaterials;  dielectric properties;  thermosets; 

摘要 A rosin‐based monomer with thermally crosslinkable benzocyclobutene groups was synthesized in this study. The structure of the monomer was examined using mass spectroscopy, Fourier transform infrared spectroscopy, and nuclear magnetic resonance spectroscopy. An amorphous crosslinked network with dielectric constant of 2.71 and dielectric loss of 0.0012 at 30?MHz was formed when the monomer was polymerized at high temperature (>?200?°C). The polymer film exhibits surface roughness (Ra) of 0.337?nm in a 5.0?×?5.0 μm2 area and the water contact angle of 110°. In addition, results from thermogravimetric analysis indicate that the polymer has T5% = 402?°C, and differential scanning calorimetry measurements show that the glass transition temperature is at least 350?°C. Results from nanoindentation tests show that the hardness and Young's modulus of the polymer are 0.418 and 4.728?GPa, respectively. These data suggest that this new polymer may have potential applications in electronics and microelectronics.

服务人员 尚玮姣

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