聚甲基丙烯酸N,N-二甲氨基乙酯水溶液的响应性能研究
Research on responsibility of poly[2-(N,N-dimethyl amino)ethyl methacrylate] solution
王薇,杜启云
摘要(Abstract)：
采用本体聚合的方法合成了聚甲基丙烯酸N,N 二甲氨基乙酯(PDMAEMA),并将中空纤维超滤技术应用于所制聚合物的精制;研究了PDMAEMA稀水溶液在不同的聚合物浓度、不同pH值以及以不同浓度的氯化钠水溶液为溶剂等条件下的粘度性能(特性粘数)和PDMAEMA浓水溶液的表观粘度随聚合物溶液的浓度、pH值的变化关系.实验结果表明:作为聚电解质溶液,PDMAEMA的稀水溶液呈现出强烈的聚电解质效应,表现为具有浓度依赖性、盐溶液浓度的响应性以及pH响应性;PDMAEMA的浓水溶液(其质量分数为200)也显示出明显的pH响应性.
关键词(KeyWords)： 聚甲基丙烯酸N,N二甲氨基乙酯;粘度;响应性
基金项目(Foundation): 国家863计划项目(2002AA302619)
作者(Author): 王薇,杜启云
参考文献(References)：
- [1] SunHongmei,PangXinan,ChenMansheng,etal.NeutralPd(Ⅲ)andNi(Ⅱ)acetylideinitiatorsforpolymerizationof(dimethylamino)ethylmethacrylate[J].Catalysis,2003,(9):85-89.
- [2] DruzhininaTV,AndricheakoYuD,ErofeevaIV.Thermooxidationofmodifiedpolycaproamidefibrecontaininggraftpoly(dimethylaminodthylmethaxrylate)[J].FibreChemistry,2001,33:193-199.
- [3] CherngJong Yuh,PetravandeWetering,HerreTalsma,etal.Effectofsizeandserumproteninsontransfectionefficiencyofpoly(2 dimethylamino)ethyimethacrylate) plasmidnanoparticles[J].PharmaceuticalResearch,1996,13:1038-1042.
- [4] BorisMahltig,RobertJr me,ManfredStamm.Theinfluenceofanacid base equilibriumontheadsoptionbehaviourofaweakpolyampholyte[J].JPolymerResearch,2003,(10):219-223.
- [5] KazunoriYamada,TakeshiGondo,Mitsuohirata.ApplicationofDMAEMA graftedexpandedPTFEfilmstopositivelychargedultrafiltrationmembranesandtheirelectrostaticsieveseparationproperties[J].JAppliedPolymerScience,2001,81:1595-1604.
- [6] RoudmanAR,DiGianoFA.Surfaceenergyofexperimentalandcommericalnanofiltrationmembranes:Effectsofwettingandnaturalorganicmatterfourling[J].JMembraneScience,2000,175:61-73.
- [7] MoniqueJBruining,HarrietGTBlaauwgeers.Biodegradablethree dimensionalnetworksofpoly(dimethylaminoethylmethacrylate)synthesis,characterizationandinvitrostudiesofstructuraldegradationandcytotoxicity[J].Biomaterials,2000,21:595-604.
- [8] 宋鹏飞,王荣民,王云普.pH敏感性壳聚糖/聚乙烯吡咯烷酮水凝胶的制备及其性能[J].西北师范大学学报(自然科学版),2004,(4):53-55.
- [9] DuRunhong,ZhaoJiasen.Positivelychargedcompositenanofiltrationmembranepreparedbypoly(N,N dimethylaminoethylmethacrylate)/potysulfone[J].JAppliedPolymerScience,2004,91:2721-2728.
- [10] 杜启云,汪 勇.PDM/PAN共混荷正电管式膜的研究[J].水处理技术,2004,(1):8-10.