摘要
分别用间苯二甲酸、邻苯二甲酸及其二者混合物 (间 /邻苯二甲酸酐摩尔比为 4∶ 1 )与二元醇 (丙二醇与一缩二乙二醇摩尔比为 4∶ 1 )反应合成了 3种胶衣树脂 (分别为间 -UPR、邻 -UPR和混 -UPR)。当树脂中加入质量分数为 1 %的安息香乙醚作光引发剂后 ,紫外光照射 3 0 min即可固化。固化后 ,产物的耐酸碱性、耐溶剂性和表面光泽以邻苯型树脂最好。用红外光谱等方法研究了其紫外固化过程 ,用 TG-DTA法研究了固化物的热性能 ,发现间 -UPR在 3 0 0℃以前几乎无失重 ,而邻 -UPR在 1 0 0℃左右即开始失重。此外 ,光固化树脂的热稳定性好于用过氧化物固化的树脂。
The suitabale ratio material and reaction conditions were selected, saturated acid such as m-phthalic acid, o-phthalic acid and their mixing acid(m/o-phthalic acid mol ratio 4∶1), mix dis- alcohol(propanediol/diethylene glycol mol ratio 4∶1) were used, respectively. Three kinds of resins(they are m-UPR, o-UPR and mix-UPR, respectively) have been prepared. They can be cured when 1% mass fraction Benzoin ethyl ether is added in the resins, and UV illumination for 30 min. In cured resins, the property of m-UPR is the best in acid-restant, base-restant, dissolvent-restant and surface luster of the UV-cured resins. Their UV-curing process has been investigated by FTIR spectra. The hermostability of the cured resins are studied by TG/DTA technique, it is found that loss gravity of o-UPR begins at 100 ℃ but m-UPR do not happen at 300 ℃. In addition, UV-cured resins have better themostability than resins cured by peroxide.
出处
《应用化学》
CAS
CSCD
北大核心
2002年第11期1064-1067,共4页
Chinese Journal of Applied Chemistry
基金
河南省高校杰出人才创新工程基金项目资助 (2 0 0 0 KYCX0 0 2 )
