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Synthesis and crosslinking reaction of a novel polymer containing benzoxazine and phenyleneethynylene moieties in the main chain
Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2019-11-04 , DOI: 10.1002/pola.29536 Takumi Kobayashi 1 , Masahide Goto 1 , Masaki Minami 2 , Fumio Sanda 1
Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2019-11-04 , DOI: 10.1002/pola.29536 Takumi Kobayashi 1 , Masahide Goto 1 , Masaki Minami 2 , Fumio Sanda 1
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A novel polymer, poly(1) containing benzoxazine and phenyleneethynylene moieties in the main chain with number-average molecular weights ranging from 1400 to 9800 was obtained quantitatively by the Sonogashira–Hagihara coupling polymerization of the corresponding iodophenyl- and ethynylphenyl-substituted monomer 1. Poly(1) was heated at 200 °C under N2 for 2 h to obtain the cured polymer, poly(1)′ via the ring-opening polymerization of the benzoxazine moieties. The structures of the polymer before and after curing were confirmed by 1H-NMR, IR, and UV–vis absorption and reflectance spectroscopies. Poly(1)′ was thermally more stable than monomer 1 and poly(1). A specimen was prepared from a mixture of poly(1) and phenol-diaminodiphenylmethane type benzoxazine 2 by heating at 200 °C for 2 h under N2. The poly(1)/2 resin was thermally stable than bisphenol-A type benzoxazine resin 3. Poly(1) exhibited XRD peaks corresponding to the d-spacings of 1.26–0.98 and 0.40 nm, assignable to the repeating monomer unit and alignment of polymer molecules, respectively. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 2581–2589
中文翻译：
主链含有苯并恶嗪和亚苯基亚乙炔基的新型聚合物的合成及交联反应
通过相应的碘代苯基和乙炔基苯基取代的单体1的 Sonogashira-Hagihara 偶联聚合定量获得了一种新型聚合物，即在主链中含有苯并恶嗪和亚苯基乙炔基部分的新型聚合物，其数均分子量范围为 1400 至 9800 。聚( 1 )在N 2下于200℃加热2小时，通过苯并恶嗪部分的开环聚合获得固化聚合物聚( 1 )'。通过1 H-NMR、IR 和 UV-vis 吸收和反射光谱证实了固化前后聚合物的结构。Poly( 1 )' 比单体热更稳定1和聚（1）。通过在 N 2下在 200 °C 下加热 2 小时，由聚 ( 1 ) 和苯酚-二氨基二苯基甲烷型苯并恶嗪2的混合物制备样品。聚( 1 )/ 2树脂比双酚A型苯并恶嗪树脂3具有热稳定性。Poly( 1 ) 的 XRD 峰对应于1.26–0.98 和 0.40 nm的d间距，分别归因于重复单体单元和聚合物分子的排列。© 2019 Wiley Periodicals, Inc. J. Polym。科学，A 部分：Polym。化学。2019 , 57 , 2581–2589
更新日期：2019-11-04
中文翻译：
主链含有苯并恶嗪和亚苯基亚乙炔基的新型聚合物的合成及交联反应
通过相应的碘代苯基和乙炔基苯基取代的单体1的 Sonogashira-Hagihara 偶联聚合定量获得了一种新型聚合物，即在主链中含有苯并恶嗪和亚苯基乙炔基部分的新型聚合物，其数均分子量范围为 1400 至 9800 。聚( 1 )在N 2下于200℃加热2小时，通过苯并恶嗪部分的开环聚合获得固化聚合物聚( 1 )'。通过1 H-NMR、IR 和 UV-vis 吸收和反射光谱证实了固化前后聚合物的结构。Poly( 1 )' 比单体热更稳定1和聚（1）。通过在 N 2下在 200 °C 下加热 2 小时，由聚 ( 1 ) 和苯酚-二氨基二苯基甲烷型苯并恶嗪2的混合物制备样品。聚( 1 )/ 2树脂比双酚A型苯并恶嗪树脂3具有热稳定性。Poly( 1 ) 的 XRD 峰对应于1.26–0.98 和 0.40 nm的d间距，分别归因于重复单体单元和聚合物分子的排列。© 2019 Wiley Periodicals, Inc. J. Polym。科学，A 部分：Polym。化学。2019 , 57 , 2581–2589
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