摘要
以萘、α－萘酚为单体，苯甲醛为交联剂，可在酸催化下合成得到未交联的缩合多核芳香烃树脂。其中以萘为单体时，反应需在浓硫酸催化在１６０℃以上的温度下进行；而以α－萘酚为单体时，反应可在浓硫酸、对甲苯磺酸或三氯乙酸催化下在１２０℃左右进行。所得未交联ＣＯＰＮＡ树脂均具备很好的流动性，而交联后的树脂均具有很高的耐热性。以为单体的树脂在氮气中的热降解起始温度可达５１０℃，以α－酚为单体的树脂也可达到４６０℃。
Uncross-linked condensed polynuclear aromatics(COPNA)resins can be prepared using naphthalene and α-naphthol as monomers and benzaldehyde as cross-link agent with the existence of acid catalysts. When the monomer is naphthalene,the polymerization can happen only under the catalysis of concentrated sulphuric acid at the temperature above 160℃,while when the monomer is α-maphthol, the polymerization can happen under the catalysis of either concentrated sulphuric acid or p-toluenesulfonic acid or trichloro-acetic acid at the temperature about 120℃. All uncross-linked COPNA resins obtained were found to possess good fluidity,while cross-linked resins all possess high heat-resistance.The thermal decomposition temperature of the resin using naphthalene as monomer was 510℃ in nitrogen,while that of the resin using α-naphthol as monomer was 460℃.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1995年第1期29-33,共5页
Polymer Materials Science & Engineering
关键词
缩合
多核
芳香烃树脂
萘酚
苯甲醛
热固性塑料
s:condensed polynuclear aromatics resin,heat resistant thermosetting polymer, naphthalene, α-naphthol, benzaldehyde
