MS  >> Vol. 3 No. 1 (January 2013)

    无皂种子乳液聚合制备新型增稠剂
    Synthesis and Charaterized of Thickener by Soap-Free and Seeded Emulsion Polymerization

  • 全文下载: PDF(577KB) HTML   XML   PP.35-39   DOI: 10.12677/MS.2013.31007  
  • 下载量: 2,900  浏览量: 9,103   国家自然科学基金支持

作者:  

杨润苗,刘玉海,邓瑶瑶,黄 磊,秦莺莺:江苏技术师范学院,材料工程学院

关键词:
增稠剂无皂种子乳液聚合丙烯酸甲基丙烯酸十二酯 Thickener; Soap-Free and Seeded Emulsion Polymerization; Acrylic Acid; Lauryl Methlacrylate

摘要:

采用无皂种子乳液聚合方法制备了一种新型丙烯酸酯共聚物增稠剂。为了获得表面清洁和表面富含羧基的功能性聚合物乳胶粒子,首先合成了种子颗粒直径在250~300纳米的聚(苯乙烯-甲基丙烯酸)(P(St-MAA))种子乳液;然后,在无乳化剂的条件下,聚合丙烯酸乙酯(EA),甲基丙烯酸十二酯(LMA),苯乙烯(St)和甲基丙烯酸(MAA);最后,得到颗粒直径在380~440纳米的稳定乳液。重点研究了甲基丙烯酸十二酯含量对乳液颗粒大小和乳液稳定性的影响。研究表明,该聚合物乳液具有很好的增稠性能,良好的悬浮能力,透明性好,易于使用。采用傅里叶变换红外光谱仪(FT-IR)、示差扫描量热仪(DSC)、透射电子显微镜(TEM)对其结构和形貌进行了表征。

A kind of acrylates copolymer thickener was prepared by soap-free and seeded emulsion polymerization. In order to obtain functional polymer latex particles with clean surface and with surface carboxyl groups, Poly (styrene-methacrylic acid) (P (St-MAA)) seed particles with the diameter of 250 - 300 nm were synthesized via soap-free emulsion polymerization. Then the seeded emulsion copolymerization of ethylacrylate (EA), lauryl methlacrylate (LMA), St and MAA onto the seed particles were performed in the absence of emulsifier. The content of LMA effected for the particles size and the stability of the emulsion was studied. The thickening performance of this polymer latex was quite good with the high thickening performance, good suspension ability, good transparence and easy to use. The factors of the copolymerization and the properties of the emulsion were discussed. Its structure and morphology were characterize by fourier transform infrared spectrometer (FT-IR) and transmission electron microscope (TEM).

文章引用:
杨润苗, 刘玉海, 邓瑶瑶, 黄磊, 秦莺莺. 无皂种子乳液聚合制备新型增稠剂[J]. 材料科学, 2013, 3(1): 35-39. http://dx.doi.org/10.12677/MS.2013.31007

参考文献

[1] K. Kang, C. Y. Kan, Y. Du and D. S. Liu. Synthesis and proper- ties of soap-free poly (methyl methacrylate, ethyl acrylate, me- thacrylic acid) latex particles prepared by seeded emulsion po- lymerization. European Polymer Journal, 2005, 41(3): 439-445.
[2] 何平, 谢洪全, 侯笃冠. 有关反向乳液聚合制备聚丙烯酸增稠剂的几个问题[J]. 高分子材料科学与工程, 2002, 18(3): 172- 175.
[3] A. Zhu, Z. Shi, A. Cai, et al. Synthesis of core-shell PMMA- SiO2 nanoparticles with suspen-sion-dispersion-polymerization in an aqueous system and its effect on mechanical properties of PVC composites. Polymer Testing, 2008, 27(5): 540-547.
[4] 王景慧, 罗青枝, 王德松. 聚合型乳化剂反相乳液聚合法制备印花增稠剂[J]. 精细石油化工, 2008, 25(6): 39-45.
[5] 朱雯, 黄芳婷, 杨润苗, 张明. 分散聚合法制备粒径可控的单分散聚苯乙烯微球[J]. 材料科学与工程学报, 2012, 30(4): 595-599.
[6] W. K. Ng, K. C. Tam and R. D. Jenkins. Rheological properties of methacrylic acid/ethyl acrylate co-polymer: comparison be- tween an unmodified and hydrophobically modified system. Po- lymer, 2001, 42(2): 249-253.
[7] K. C. Tam, W. K. Ng and R. D. Jenkins. Relaxation behavior of hydrophobically modified polyelectrolyte solution under various deformations. Polymer, 2005, 46(8): 4052-4059.
[8] 赵艳娜, 沈一丁. 水分散多异氰酸酯交联苯乙烯-丙烯酸酯树脂的制备及制备[J]. 功能材料, 2011, 42(6): 1151-1154.
[9] 张莉, 陈桐, 陈梦瑜等. 无皂乳液聚合反应机理和制备方法的研究进展[J]. 中国胶黏剂, 2007, 17(4): 47-52.
[10] J. Ugelstad, K. H. Kaggerud and R. M. Fitch. In: R. M. Fitch, Ed., Polymer Colloid II. New York: Plenum, 1980: 82-86.
[11] M. Okubo, T. Nakagawa. Preparation of micron-size monodies- perse polymer particles having highly crosslinked structures and vinyl groups by seeded polymerization of divinylbenzene using the dynamic swelling method. Colloid and Polymer Science, 1992, 270(9): 853-858.
[12] 徐继红, 徐国财, 王贞平. 超声辐射丙烯酸丁酯无皂乳液聚合[J]. 化工新型材料, 2006, 34(3): 27-29.
[13] S. Tolue, M. R. Moghbeli and S. M. Ghafelebashi. Preparation of ASA (acrylonitrile-styrene-acrylate) structural latexes via see- ded emulsion polymerization. European Polymer Journal, 2009, 45(3): 714-720.
[14] 徐桂龙, 梁云, 杨进等. 阳离子无皂含氟核壳苯丙乳液的制备及成核机理[J]. 高分子材料科学与工程, 2012, 28(8): 5-8.
[15] 王晨, 姜绪宝, 朱晓丽, 孔祥正. 含二十二烷基聚氧乙烯醚甲基丙烯酸酯功能单体的缔合型乳液增稠剂的制备及表征[J].化学学报, 2010, 68(7): 689-696.
[16] 李刚辉, 沈一丁, 任庆海. 无皂乳液聚合的稳定方法和应用进展[J]. 化工进展, 2005, 24(5): 489-492.