SBA-15 filled polybenzoxazine nanocomposites for low-k dielectric applications
SBA-15 filled polybenzoxazine nanocomposites for low-k dielectric applications
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DOI：
10.1039/c2jm16566j
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发表时间：
2012-03
影响因子：
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通讯作者：
M. R. Vengatesan;S. Devaraju;K. Dinakaran;M. Alagar
中科院分区：
文献类型：
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作者：
M. R. Vengatesan;S. Devaraju;K. Dinakaran;M. Alagar
以苯并恶嗪功能化的SBA-15（BZ/SBA-15）和苯并恶嗪单体为原料，通过热开环聚合法成功合成了含介孔氧化硅（SBA-15）的低介电聚苯并恶嗪纳米复合材料（SBA-15/PBZ）。采用苯并恶嗪功能化硅烷接枝法对SBA-15进行功能化。通过FT-IR、13 C CPMAS、29 Si CPMAS NMR、XPS、TGA和氮气孔隙率分析证实了BZ/SBA-15中的苯并恶嗪官能团。通过增加BZ/SBA-15的用量，SBA-15/PBZ纳米复合材料具有较高的Tg和良好的热稳定性。7.5 BZ/SBA-15增强聚苯并恶嗪纳米复合材料在1 MHz下具有1.75的超低介电常数。
Low dielectric polybenzoxazine nanocomposites (SBA-15/PBZ) containing mesoporous silica (SBA-15) were successfully synthesized, using benzoxazine functionalized SBA-15 (BZ/SBA-15) and benzoxazine monomer, through thermal ring opening polymerization. SBA-15 was functionalized with benzoxazine functional silane via grafting method. The benzoxazine functionality in BZ/SBA-15 was confirmed by FT-IR, 13C CPMAS, 29Si CPMAS NMR, XPS, TGA and nitrogen porosimetry analysis. By increasing the amount of BZ/SBA-15, the SBA-15/PBZ nanocomposites possess higher Tg and good thermal stability. 7.5 Wt % of BZ/SBA-15 reinforced polybenzoxazine nanocomposite possesses an ultra-low dielectric constant of 1.75 at 1 MHz.