CAJ | 학술논문

利用丙烯酰胺在硫酸铵水溶液分散介质中的分散聚合制备了聚丙烯酰胺水溶性聚合物分散体；研究了硫酸铵浓度、聚甲基丙烯酰氧乙基三甲基氯化铵（PDM C ）的相对分子质量及甲酸钠用量对聚丙烯酰胺水分散体系分散稳定性的影响．结果表明，获得稳定聚丙烯酰胺分散体系的最佳合成条件为：不加甲酸钠、PDMC的相对分子质量为8．02×105、硫酸铵的质量分数为20．9％．在最佳条件下得到的聚丙烯酰胺聚合物的相对分子质量为1．12×106．
이용병희선알재류산안수용액분산개질중적분산취합제비료취병희선알수용성취합물분산체；연구료류산안농도、취갑기병희선양을기삼갑기록화안（PDM C ）적상대분자질량급갑산납용량대취병희선알수분산체계분산은정성적영향．결과표명，획득은정취병희선알분산체계적최가합성조건위：불가갑산납、PDMC적상대분자질량위8．02×105、류산안적질량분수위20．9％．재최가조건하득도적취병희선알취합물적상대분자질량위1．12×106．
Water-soluble polyacrylamide dispersion was prepared by making use of the disper-sion polymerization of acrylamide in (NH4 )2 SO4 aqueous medium .The effects of (NH4 )2 SO4 concentration ,relative molecular weight of poly (methylacryloylxyethyl trimethyl ammonium chloride) (denoted as PDMC) and sodium formate dosage on the dispersion stability of as-pre-pared polyacrylamide dispersion were investigated .Results indicate that stable polyacrylamide dispersion can be obtained under the optimal reaction condition involving PDMC with an average relative molecular weight of 8 .02 × 105 and 20 .9% (mass fraction) of (NH4 )2 SO4 in the absence of sodium formate .Resultant polyacrylamide polymer obtained under the optimal reaction condition has a relative molecular weight of 1 .12 × 106 .