| 影响酚醛型苯并口恶嗪软化点的结构因素 |
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| 引用本文： | 王晓颖,赵培,凌鸿,顾宜.影响酚醛型苯并口恶嗪软化点的结构因素[J].高分子材料科学与工程,2009(1):52-54,58. |
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| 作者姓名： | 王晓颖 赵培 凌鸿 顾宜 |
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| 作者单位： | 高分子材料工程国家重点实验室;四川大学高分子科学与工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(90405001) |
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| 摘 要： | 合成了分子量不同的酚醛树脂预聚体,以此为多元酚基体采用悬浮法通过控制苯酚与苯胺的摩尔配比合成了一系列苯并口恶嗪环状结构含量不同的酚醛型苯并口恶嗪中间体树脂(P-BOZ),并用FT-IR和1H-NMR对其结构进行了表征,用环球法对其软化点进行了测量。研究表明,P-BOZ的软化点随酚醛树脂预聚体分子量的增加而提高,随苯并口恶嗪环状结构含量的增加而降低,这一现象与分子间酚羟基的氢键作用有关。因此,通过分子设计可以提高其软化点。
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| 关 键 词： | 苯并口恶嗪 软化点 凝胶化时间 分子量 氢键 |
Structure Factors Affecting Softening Point of Benzoxazine Intermediates Based on Phenolic Oligomer |
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| WANG Xiao-ying,ZHAO Pei,LING Hong,GU Yi.Structure Factors Affecting Softening Point of Benzoxazine Intermediates Based on Phenolic Oligomer[J].Polymer Materials Science & Engineering,2009(1):52-54,58. |
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| Authors: | WANG Xiao-ying ZHAO Pei LING Hong GU Yi |
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| Affiliation: | State Key Laboratory of Polymer Materials Engineering;College of Polymer Science and Engineering;Sichuan University;Chengdu 610065;China |
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| Abstract: | Benzoxazine intermediate powders based on phenolic oligomer(P-BOZ),which had different content of benzoxazine ring via controlling the mole ratio of phenol and aniline,were synthesized by suspension method.Their structures were confirmed by FT-IR and 1H-NMR.Their softening points were also measured with investigation of the molecular structures of P-BOZs,it is found that the softening points of P-BOZs is improved when the molecular weight of phenolic oligomer increases,and lowers down when the content of be... |
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| Keywords: | benzoxazine softening point gelation time molecular weight hydrogen bonding |
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