采用有机助溶剂法,以甲基丙烯酸六氟丁酯（FA）、甲基丙烯酰氧乙基三甲基氯化铵（DMC）、苯乙烯（St）、丙烯酸丁酯（BA）为反应单体,在N-甲基吡咯烷酮（NMP）作用下制备出阳离子氟碳丙烯酸酯共聚物无皂乳液（CFE）。通过凝聚率、沉淀量、动态激光光散射（DLS）、透射电镜（TEM）、接触角和吸水率等手段对CFE的稳定性、乳胶粒尺寸及形态、乳胶膜表面性能进行了表征。结果表明含氟单体用量增加,凝聚率明显提高,沉淀量略有下降;乳胶粒尺寸显著增加,粒径分布由单分散向多分散过渡;乳胶膜的表面性能大幅度提高,当m（FA）为20.14%时,吸水率和乳胶膜表面自由能可低至3.26%和21.11mJ/m2。
Cationic fluorocarbon emulsifer-free emulsion （CFE） was prepared with the emulsifier-free copoly- merization of 2, 2, 3, 4, 4, 4-hexafluorobutyl methacrylate （FA）, methacrylatoethyl trimethyl ammonium chloride （DMC）, styrene （St） and butyl acrylate （BA） via method of adding organic cosolvent. The emulsion stability, particle size and morphology of CFE were characterized by the coagulation ratio, precipitation ratio, dynamic laser light scattering （DLS） and transmission electron microscopy （TEM） respectively~ the latex film surface properties were investigated by contact angle and water absorption ratio. The results showed that when the content of fluorinated monomer increased, the coagulation ratio rised apparently, but the precipitation ratio decreased Slightly. Meanwhile, the latex particle size increased and the transition of particle size distribution was from mono-dispersion to multi-dispersions. At the same time, the latex film surface performance was greatly improved. When m （FA） was 20.14%, the water absorption ratio and the latex film surface free energy could be low to 3.26% and 21. 11mJ/m2 respectively.
参考文献
| [1] | Chen YJ;Zhang CC;Chen XX .Emulsifier-free latex of fluorinated acrylate copolymer[J].European Polymer Journal,2006(3):694-701. |
| [2] | 陈立军,史鸿鑫,武宏科,项菊萍.无皂乳液聚合法制备氟碳聚合物乳液[J].深圳大学学报(理工版),2008(04):331-337. |
| [3] | 肖新颜,刘健飞.核-壳结构含氟丙烯酸酯乳液的全盛与表征[J].中国化学工程学报(英文版),2008(04):626-630. |
| [4] | He Ling;Liang Junyan .Synthesis, modification and characterization of core-shell fluoroacrylate copolymer latexes[J].Journal of Fluorine Chemistry,2008(7):590-597. |
| [5] | Xu Guilong;Deng Lili;Wen Xiufang et al.Synthesis and characterization of fluorine-containing poly-styrene- acrylate latex with core-shell structure using a reactive surfactant[J].Journal of Coatings Technology and Re- search,2012,8(03):401-407. |
| [6] | Tingting Yang;Li Yao;Hui Peng .Characterization of a low-wettable surface based on perfluoroalkyl acrylate copolymers[J].Journal of Fluorine Chemistry,2006(8):1105-1110. |
| [7] | Yang TT;Peng H;Cheng SY;Park IJ .Soap-free emulsion copolymerization of perfluoroalkyl acrylates in the presence of a reactive surfactant[J].Journal of Applied Polymer Science,2007(4):2438-2444. |
| [8] | Xuejun Cui;Shuangling Zhong;Hongyan Wang .Emulsifier-free core—shell polyacrylate latex nanoparticles containing fluorine and silicon in shell[J].Polymer: The International Journal for the Science and Technology of Polymers,2007(25):7241-7248. |
| [9] | Shouping Xu;Weiqu Liu .Synthesis and surface characterization of an amphiphilic fluorinated copolymer via emulsifier-free emulsion polymerization of RAFT[J].Journal of Fluorine Chemistry,2008(2):125-130. |
| [10] | Xu SP;Liu WQ .Synthesis of amphiphilic fluorinated copolymer and the formation of hollow nanotubes[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2008(3):210-213. |
| [11] | 汪海伟,袁荞龙,吴树森.阳离子无皂含氟丙烯酸酯的合成与表面性能[J].功能高分子学报,2007(02):184-192. |
| [12] | Hidenobu Shimizu;Tomonari Shiraishi;Risei Wada .Fluorinated monomer-styrene copolymer latex particles:I.kinetic studies in a soap-free aqueous medium[J].Colloid and polymer science,2006(1):107-111. |
| [13] | Shimizu H;Shiraishi T;Wada R et al.Soap-free emul- sion copolymerization of styrene with 2,2,2-trifluoroeth- yl acrylate[J].Polymeric Preprints(American Chemical Society Division of Polymer Chemistry),2005,54(01):964. |
| [14] | 毛江 .新型含氟两亲性嵌段共聚物的合成表征及应用[D].苏州大学,2007. |
| [15] | Ou J L;Yang J K;Chen H .Styrene potassium persulfate water systems:effects of hydrophilic co-monomers and solvent additives on the nucleation mechanism and the particle size[J].European Polymer Journal,2001,37(03):789-799. |
| [16] | Hong Tan;Xingyi Xie;Jiehua Li;Yinping Zhong;Qiang Fu .Synthesis and surface mobility of segmented polyurethanes with fluorinated side chains attached to hard blocks[J].Polymer: The International Journal for the Science and Technology of Polymers,2004(5):1495-1502. |
| [17] | Li GH;Shen YD;Ren QH .Effect of fluorinated acrylate on the surf ace properties of cationic fluorinated polyurethane-acrylate hybrid dispersions[J].Journal of Applied Polymer Science,2005(6):2192-2196. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%