聚氨酯工业
聚氨酯工業
취안지공업
POLYURETHANE INDUSTRY
2014年
3期
14-16,20
,共4页
杨雪云%王祚芳%周建
楊雪雲%王祚芳%週建
양설운%왕조방%주건
3 ,3′-二氯-4,4′-二氨基二苯甲烷%D72树脂%催化合成
3 ,3′-二氯-4,4′-二氨基二苯甲烷%D72樹脂%催化閤成
3 ,3′-이록-4,4′-이안기이분갑완%D72수지%최화합성
3,3′-dichloro-4,4′-diaminodiphenyl methane%resin D72%catalytic synthesis
以大孔型阳离子交换树脂（ D72）为催化剂，以邻氯苯胺和甲醛为原料合成3，3′-二氯-4，4′-二氨基二苯甲烷（ MOCA），考察了反应温度、反应时间、物料比、催化剂用量及催化剂重复使用次数等因素对反应产率的影响。结果表明，当邻氯苯胺和甲醛的物料摩尔比2?0∶1、反应温度95℃、反应7 h、催化剂D72用量4 g，产物的产率达到32?5％。催化剂重复使用9次，产率未见明显下降。D72树脂可作为合成MOCA的潜在催化剂。
以大孔型暘離子交換樹脂（ D72）為催化劑，以鄰氯苯胺和甲醛為原料閤成3，3′-二氯-4，4′-二氨基二苯甲烷（ MOCA），攷察瞭反應溫度、反應時間、物料比、催化劑用量及催化劑重複使用次數等因素對反應產率的影響。結果錶明，噹鄰氯苯胺和甲醛的物料摩爾比2?0∶1、反應溫度95℃、反應7 h、催化劑D72用量4 g，產物的產率達到32?5％。催化劑重複使用9次，產率未見明顯下降。D72樹脂可作為閤成MOCA的潛在催化劑。
이대공형양리자교환수지（ D72）위최화제，이린록분알화갑철위원료합성3，3′-이록-4，4′-이안기이분갑완（ MOCA），고찰료반응온도、반응시간、물료비、최화제용량급최화제중복사용차수등인소대반응산솔적영향。결과표명，당린록분알화갑철적물료마이비2?0∶1、반응온도95℃、반응7 h、최화제D72용량4 g，산물적산솔체도32?5％。최화제중복사용9차，산솔미견명현하강。D72수지가작위합성MOCA적잠재최화제。
Using macroporous strong acid cation exchange resin(D72) as catalyst, 3,3′-dichloro-4,4′-diamin-odiphenyl methane ( MOCA) was synthesized by o-chloroaniline and formaldehyde. Effects of reaction temperature, reaction time, molar ratio of the raw materials and dosage of the catalyst as well as the times of reuse of the catalyst on the reaction yield were studied. The yield of the product reached 32?5% when the molar ratio of o-chloroaniline to formaldehyde was 2?0∶1 , the reaction temperature was 95℃, the reaction time was 7 h and the mass of the res-in D72 was 4 g. The catalyst could be reused for 9 times without yield decreasing obviously. Thus, the resin D72 was a potential catalyst for MOCA synthesis.
