当前位置：
X-MOL 学术
›
Biomacromolecules
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Bio-based Low-k Polymers at High Frequency Derived from Anethole: Synthesis and the Relationship between the Structures and the Properties
Biomacromolecules ( IF 5.5 ) Pub Date : 2023-08-21 , DOI: 10.1021/acs.biomac.3c00558 Fengping Liu 1 , Minghui Li 1 , Jing Sun 1 , Qiang Fang 1
Biomacromolecules ( IF 5.5 ) Pub Date : 2023-08-21 , DOI: 10.1021/acs.biomac.3c00558 Fengping Liu 1 , Minghui Li 1 , Jing Sun 1 , Qiang Fang 1
Affiliation
|
Bio-based polymers have been widely investigated as sustainable low dielectric (low-k) materials in past decades. Nevertheless, a few of the polymers with excellent comprehensive properties have been achieved to satisfy the requirements of high-frequency communication application. In this paper, two fluorinated monomers (BCB-F and 2BCB-F) have been designed and successfully prepared from biomass anethole. The thermal-cross-linkable benzocyclobutene and polyfluorobenzene groups were introduced in order to obtain low-k polymers with good comprehensive properties. A control monomer C1 was prepared from the estragole, the isomer of anethole, to study intensively the effect of structures on properties. Among the thermally cured polymers, cured BCB-F with higher fluoride content shows a comparable dielectric constant (Dk) of 2.62 and lower dielectric loss (Df) of 1.31 × 10–3 at a frequency of 10 GHz, as well as better hydrophobic properties with a water uptake of 0.18%. Such good hydrophobic properties enable it to maintain the good dielectric properties even after being soaked in boiling water for 96 h. Cured 2BCB-F with bifunctional benzocyclobutene groups displays excellent heat resistance with a high glass transition temperature (Tg) of 408 °C and a low coefficient of thermal expansion (CTE) of 52 ppm/°C in the temperature range 30–300 °C. Cured 2BCB-F also shows good dielectric properties with a Dk of 2.61 and a Df of 2.60 × 10–3 at a frequency of 10 GHz. The good comprehensive properties reveal that the anethole-based polymers are suitable candidates as matrix or encapsulation resins for application in electronics and microelectric fields.
中文翻译：
茴香脑高频生物基低介电常数聚合物的合成及其结构与性能的关系
在过去的几十年里，生物基聚合物作为可持续的低介电（低k）材料已被广泛研究。尽管如此，一些具有优异综合性能的聚合物已经能够满足高频通信应用的要求。本文以生物质茴香脑为原料，设计并成功制备了两种含氟单体（ BCB-F和2BCB-F ）。引入可热交联的苯并环丁烯和多氟苯基团以获得具有良好综合性能的低k聚合物。以茴香脑的异构体草蒿脑为原料，制备了对照单体C1，以深入研究结构对性能的影响。在热固化聚合物中，氟化物含量较高的固化BCB-F在 10 GHz 频率下表现出相当的介电常数 ( D k ) 2.62 和较低的介电损耗 ( D f ) 1.31 × 10 –3，以及更好的性能。具有疏水性，吸水率为0.18%。良好的疏水性能使其即使在沸水中浸泡96小时后仍能保持良好的介电性能。具有双官能苯并环丁烯基团的固化2BCB-F具有优异的耐热性，在 30–300 °C 的温度范围内具有 408 °C 的高玻璃化转变温度 ( T g ) 和 52 ppm/°C 的低热膨胀系数 (CTE) C。固化的2BCB-F还表现出良好的介电性能，在 10 GHz 频率下D k为 2.61，D f为 2.60 × 10 –3 。良好的综合性能表明茴香脑基聚合物是电子和微电子领域应用的基体或封装树脂的合适候选者。
更新日期：2023-08-21
中文翻译：
茴香脑高频生物基低介电常数聚合物的合成及其结构与性能的关系
在过去的几十年里，生物基聚合物作为可持续的低介电（低k）材料已被广泛研究。尽管如此，一些具有优异综合性能的聚合物已经能够满足高频通信应用的要求。本文以生物质茴香脑为原料，设计并成功制备了两种含氟单体（ BCB-F和2BCB-F ）。引入可热交联的苯并环丁烯和多氟苯基团以获得具有良好综合性能的低k聚合物。以茴香脑的异构体草蒿脑为原料，制备了对照单体C1，以深入研究结构对性能的影响。在热固化聚合物中，氟化物含量较高的固化BCB-F在 10 GHz 频率下表现出相当的介电常数 ( D k ) 2.62 和较低的介电损耗 ( D f ) 1.31 × 10 –3，以及更好的性能。具有疏水性，吸水率为0.18%。良好的疏水性能使其即使在沸水中浸泡96小时后仍能保持良好的介电性能。具有双官能苯并环丁烯基团的固化2BCB-F具有优异的耐热性，在 30–300 °C 的温度范围内具有 408 °C 的高玻璃化转变温度 ( T g ) 和 52 ppm/°C 的低热膨胀系数 (CTE) C。固化的2BCB-F还表现出良好的介电性能，在 10 GHz 频率下D k为 2.61，D f为 2.60 × 10 –3 。良好的综合性能表明茴香脑基聚合物是电子和微电子领域应用的基体或封装树脂的合适候选者。
京公网安备 11010802027423号