CAJ | 학술논문

以桐酸甲酯和苯乙酮为原料，甲醇钠为催化剂，经克莱森反应合成了桐油酰苯甲酰甲烷(EBM)。通过傅立叶变换红外光谱仪和气质联用分析对EBM进行结构表征；利用气相色谱定量，探讨了物料配比、反应温度、反应时间、催化剂用量等因素对EBM收率的影响；利用L9(34)正交试验确定了EBM的最佳合成条件：桐酸甲酯与苯乙酮物质的量之比为1.2∶1，反应温度110℃，催化剂用量为苯乙酮质量的0.6％，反应时间4 h。通过刚果红试验和热老化烘箱法考察了EBM的添加量对PVC热稳定性的影响。结果表明，加入适量EBM可有效改善PVC制品的初期着色性，但并未提高其长期热稳定性。
이동산갑지화분을동위원료，갑순납위최화제，경극래삼반응합성료동유선분갑선갑완(EBM)。통과부립협변환홍외광보의화기질련용분석대EBM진행결구표정；이용기상색보정량，탐토료물료배비、반응온도、반응시간、최화제용량등인소대EBM수솔적영향；이용L9(34)정교시험학정료EBM적최가합성조건：동산갑지여분을동물질적량지비위1.2∶1，반응온도110℃，최화제용량위분을동질량적0.6％，반응시간4 h。통과강과홍시험화열노화홍상법고찰료EBM적첨가량대PVC열은정성적영향。결과표명，가입괄량EBM가유효개선PVC제품적초기착색성，단병미제고기장기열은정성。
Eleostearoyl-benzoyl methane(EBM) were prepared by claisen reaction of methyl eleostearate and hypnone as raw materials,using the sodium methoxide as catalyst. Its structure was confirmed by FTIR and GC-MS. The effect of material proportion,reaction temperature,reaction time and catalyst dosage on the yield of EBM was tested by gas chromatographic quantitative. The optimal reaction conditions indicated by L9(34)orthogonal experiment were as follows:n(methyl eleostearate):n(hypnone)=1.2∶1,with 0.6%by weight of hypnone used as catalyst dosage,reaction temperature maintained at 110℃for 4 h. Effect of contents of EBM on heat stability of PVC was tested by means of the Congo-red test and heat aging test methods. The results show that adding EBM can effectively improve the initial coloring of PVC,but its long-term thermal stability would not be improved.