Synthesis of a novel poly(binaphthylene ether) with a low dielectric constant
Synthesis of a novel poly(binaphthylene ether) with a low dielectric constant
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DOI：
10.1021/ma049390q
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发表时间：
2004-06-29
期刊：
影响因子：
5.5
通讯作者：
Ueda, M
中科院分区：
文献类型：
--
作者：
Tsuchiya, K;Ishii, H;Ueda, M
研制了一种热稳定、低介电的新型聚二乙烯醚。以FeCl3为氧化剂，通过2,2′-双（1-萘氧基）-1,1′-联萘基(1)的氧化偶联聚合制备了聚合物2。聚合得到的区域控制聚合物2，其数平均分子量为14000 Da，分子量分布为3.3。聚合物2失重5%，玻璃化转变温度为520℃，玻璃化转变温度为301℃。由电容直接测得聚合物2在1 MHz时的介电常数为2.50。聚合物2的模量和硬度分别为9.8和0.42 GPa。
A novel thermally stable and low dielectric poly(binaphthylene ether) (2) has been developed. Polymer 2 was easily prepared by oxidative coupling polymerization of 2,2'-bis(1-naphthyloxy)-1,1'-binaphthyl (1) with FeCl3 as an oxidant. This polymerization produced regiocontrolled polymer 2 with a number-average molecular weight of 14 000 Da and a molecular weight distribution of 3.3. The 5% weight loss and glass transition temperatures of polymer 2 were 520 and 301 degreesC, respectively. The dielectric constant of polymer 2 at 1 MHz was directly measured from the capacitance as 2.50. The modulus and hardness of polymer 2 were determined as 9.8 and 0.42 GPa.