功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2015年
15期
15041-15046
,共6页
亲水扩链剂%端羟基超支化聚合物%超支化水性聚氨酯%DMCA
親水擴鏈劑%耑羥基超支化聚閤物%超支化水性聚氨酯%DMCA
친수확련제%단간기초지화취합물%초지화수성취안지%DMCA
hydrophilic chain extender%hyperbranched polymer with terminal hydroxyl%hyperbranched waterborne polyurethane%DMCA
以二乙醇胺(DEA)和丁二酸酐为原料,甲醇为溶剂,合成一种新型羧酸型亲水单体 N,N-二羟乙基-2-氨基丙酸(DMCA),优化得到 DMCA 的最佳条件为：冰水浴0℃,n (DEA)∶n (丁二酸酐)为1∶1．2,时间为80 min,甲醇用量为300 mL/mol(DEA),在最佳条件下 DMCA 的转化率为86．18％.采用红外(FT-IR)、核磁(1 H NMR)、X 射线衍射(XRD)、热重(TG)、元素分析等手段对 DMCA 进行结构和性能的表征.以 DMCA 作为亲水扩链剂制备超支化水性聚氨酯 DMCA-HWPU,其性能检测结果表明,DMCA-HWPU 为非结晶性体系,其乳液呈乳白色泛蓝光,无沉淀,乳液稳定性高,并且具有很好的热稳定性.
以二乙醇胺(DEA)和丁二痠酐為原料,甲醇為溶劑,閤成一種新型羧痠型親水單體 N,N-二羥乙基-2-氨基丙痠(DMCA),優化得到 DMCA 的最佳條件為：冰水浴0℃,n (DEA)∶n (丁二痠酐)為1∶1．2,時間為80 min,甲醇用量為300 mL/mol(DEA),在最佳條件下 DMCA 的轉化率為86．18％.採用紅外(FT-IR)、覈磁(1 H NMR)、X 射線衍射(XRD)、熱重(TG)、元素分析等手段對 DMCA 進行結構和性能的錶徵.以 DMCA 作為親水擴鏈劑製備超支化水性聚氨酯 DMCA-HWPU,其性能檢測結果錶明,DMCA-HWPU 為非結晶性體繫,其乳液呈乳白色汎藍光,無沉澱,乳液穩定性高,併且具有很好的熱穩定性.
이이을순알(DEA)화정이산항위원료,갑순위용제,합성일충신형최산형친수단체 N,N-이간을기-2-안기병산(DMCA),우화득도 DMCA 적최가조건위：빙수욕0℃,n (DEA)∶n (정이산항)위1∶1．2,시간위80 min,갑순용량위300 mL/mol(DEA),재최가조건하 DMCA 적전화솔위86．18％.채용홍외(FT-IR)、핵자(1 H NMR)、X 사선연사(XRD)、열중(TG)、원소분석등수단대 DMCA 진행결구화성능적표정.이 DMCA 작위친수확련제제비초지화수성취안지 DMCA-HWPU,기성능검측결과표명,DMCA-HWPU 위비결정성체계,기유액정유백색범람광,무침정,유액은정성고,병차구유흔호적열은정성.
With diethanolamine (DEA)and succinic anhydride as raw materials and methanol alcohol as solvent, a new carboxylic acid type of hydrophilic monomer DMCA was synthesized.The best conditions for synthetic hydrophilic monomer were:temperature 0 ℃,mole ratio 1∶1.2,time 80 min,solvent dosage was 300 mL/mol (DEA).Under the best conditions,the conversion rate had reached 86.18%.The structure and performance was charaterized by FT-IR,1 H NMR,XRD,TG and element analysis.Hyperbranched waterborne polyurethane DMCA-HWPU was synthesized by using DMCA as hydrophilic chain extender.Performance test results showed that:DMCA-HWPU system is non-crystalline,the emulsion is milky and blue light without precipitation,has high emulsion stability and good thermal stability.
