文献类型：期刊文献

英文题名：High Internal Phase Emulsions Prepared with Poly(urethane urea) Aqueous Nanodispersion at Different Temperatures

作者：Zhu, Yun[1];Zhang, Shengmiao[1];Chen, Jianding[1];Hu, Chun Pu[1]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat, Minist Educ,Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2010

卷号：48

期号：19

起止页码：4356

外文期刊名：JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY

收录：;EI(收录号：20103913254233);WOS:【SCI-EXPANDED(收录号:WOS:000282304500024)】；

基金：The authors are grateful for the financial support of the Natural Science Foundation of Shanghai (Project Number: 09ZR1408300), Shanghai Leading Academic Discipline Project (B502) and Shanghai Key Laboratory Project (08DZ2230500).

语种：英文

外文关键词：foams; high internal phase emulsion; nanoparticles; poly(urethane urea) aqueous nanodispersion; templates

摘要：The high internal phase emulsions (HIPE) prepared with poly(urethane urea) aqueous nanodispersion at different temperatures was reported. The difunctional poly(neopentylene adipate) polyol (P756), dimethylpropionic acid (DMPA), N-methyl-pyrrolidone (NMP), and isophorone diisocyanate (IPDI) were charged into a 250-mL four-necked flask equipped with a mechanical stirrer, a nitrogen inlet, a condenser, and a thermometer. The mixture was reacted at 85 °C for 4 h until the theoretical NCO value (3.9 wt %) was reached, which was tested with a standard dibutylamine back titration method according to ASTM D 2572-87. The mixed monomers of Styrene and divinylbenzene (DVB) as organic phase were added to a 100-mL beaker. The beaker was heated with a given temperature water bath and the organic phase was stirred with a magnetic stirrer at 500 rpm. The results showed that the HIPE stabilized by poly(urethane urea) (PUU) particles are temperature dependent.