| 石蜡/丙烯酸核壳聚合乳液特性粘数的研究 |
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| 引用本文： | 周梅村,杨波,易争明,曹铭,杨超,马丽杰. 石蜡/丙烯酸核壳聚合乳液特性粘数的研究[J]. 石油化工, 2005, 34(4): 347-350 |
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| 作者姓名： | 周梅村 杨波 易争明 曹铭 杨超 马丽杰 |
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| 作者单位： | 昆明理工大学,生物与化学工程学院,云南,昆明,650224 |
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| 基金项目： | 云南省教育厅科学研究基金资助项目(200111049)，云南省高校联合测试基金资助项目。 |
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| 摘 要： | 采用半连续单体乳液滴加法聚合法,以石蜡(PF)为种子、丙烯酸(AA)为壳,制备石蜡/丙烯酸(PFAA)核壳聚合乳液。以乳液特性粘数([η])为评价指标,利用正交实验L9(34)筛选最佳工艺条件。考察了反应温度θ、反应时间t、引发剂K2S2O8用量和单体AA用量对PFAA乳液[η]的影响。结果表明,影响乳液[η]因素的大小顺序为θ>t>w(K2S2O8)>w(AA),较优的工艺条件:θ=70～75℃,t=2h,w(K2S2O8)=0.16%～0.20%,w(AA)=16.5%～18.0%。
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| 关 键 词： | 石蜡 丙烯酸 核壳接枝 乳液聚合 特性粘数 |
| 文章编号： | 1000-8144(2005)04-0347-04 |
| 修稿时间： | 2004-10-09 |
Study on Intrinsic Viscosity of Paraffin -Acrylic Acid Core -Shell Copolymer Emulsion |
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| Zhou Meicun,Yang Bo,Yi Zhengming,Cao Ming,Yang Chao,Ma Lijie. Study on Intrinsic Viscosity of Paraffin -Acrylic Acid Core -Shell Copolymer Emulsion[J]. Petrochemical Technology, 2005, 34(4): 347-350 |
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| Authors: | Zhou Meicun Yang Bo Yi Zhengming Cao Ming Yang Chao Ma Lijie |
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| Abstract: | Paraffin-acrylic acid(PFAA)core-shell copolymer emulsion was synthesized with paraffin(PF)as core and acrylic acid(AA)as shell by seed emulsion polymerization.With intrinsic viscosity([η])of emulsion as assessment index,optimum synthesizing conditions for PFAA emulsion were studied by orthogonal experimental design.Effects of reaction temperature,reaction time,amount of initiator and addition amount of monomer on[η]of PFAA emulsion were investigated.Factors affecting[η]of emulsion were in order of reaction temperature(θ)>reaction time(t)>mass fraction of K_2S_2O_8(w(K_2S_2O_8))>mass fraction of AA(w(AA)).Optimum reaction conditions were:θ,70—75 ℃;t,2 h,w(K_2S_2O_8)=0.16%—0.20%,and w(AA)=16.5%—18.0%. |
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| Keywords: | paraffin acrylic acid core-shell graft-copolymer emulsion polymerization intrinsic viscosity |
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