Preparation and characterization of silica sol/fluoroacrylate core–shell nanocomposite emulsion

详细信息    查看全文

• 作者：Li Wang (1)
  Xiaolong Li (1)
  Mingfu Huang (1)
  Zushun Xu (1)
  Changfeng Yi (1)
  
• 关键词：Silica sol/fluoroacrylate nanocomposite emulsion ; Core–shell structure ; Stability ; Hydrophobic performance ; UV–vis shielding effect
• 刊名：Iranian Polymer Journal
• 出版年：2012
• 出版时间：June 2012
• 年：2012
• 卷：21
• 期：6
• 页码：343-352
• 全文大小：459KB
• 参考文献：1. Hayashida K, Tanaka H, Watanabe O (2009) Miscible blends of poly(butyl methacrylate) densely grafted on fumed silica with poly(vinyl chloride). Polymer 50:6228-234 CrossRef
  2. Wen XF, Li MZ, Pi PH, Chen J, Yang ZR (2008) Study of the physicochemical properties of silica powder and the stability of organic-inorganic hybrid emulsion in the presence of ethanol. Colloid Surface A 327:103-10 CrossRef
  3. Deng TS, Zhang JY, Zhu KT, Zhang QF, Wu JL (2010) Highly monodisperse vinyl functionalized silica spheres and their self-assembled three-dimensional colloidal photonic crystals. Colloid Surface A 356:104-11 CrossRef
  4. Zhang F, Wang Y, Chai C (2004) Preparation of styrene-acrylic emulsion by using nano-SiO₂ as seeds. Polym Int 53:1353-359 CrossRef
  5. Qi DM, Bao YZ, Weng ZX, Huang ZM (2006) Preparation of acrylate polymer/silica nanocomposite particles with high silica encapsulation efficiency via miniemulsion polymerization. Polymer 47:4622-629 CrossRef
  6. Ragosta G, Abbate M, Musto P, Scarinzi G, Mascia L (2005) Epoxy-silica particulate nanocomposites: chemical interactions, reinforcement and fracture toughness. Polymer 46:10506-0516 CrossRef
  7. Zheng K, Chen L, Li Y, Cui P (2004) Preparation and thermal properties of silica-graft acrylonitrile-butadiene-styrene nanocomposites. Polym Eng Sci 44:1077-082 CrossRef
  8. Zhang Q, Zhai YG, Liu FQ, Yang M, Gao G (2008) Synthesis of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene-silica] core–shell particles with a self-templating method and their fluorescent properties. Eur Polym J 44:3957-962 CrossRef
  9. Wang YW, Yen CT, Chen WC (2005) Photosensitive polyimide/silica hybrid optical materials: synthesis, properties, and patterning. Polymer 46:6959-967 CrossRef
  10. Caruso F, Spasova M, Susha A, Giersig M, Caruso RA (2001) Magnetic nanocomposite particles and hollow spheres constructed by a sequential layering approach. Chem Mater 13:109-16 CrossRef
  11. Knopp D, Tang D, Niessner R (2009) Review: bioanalytical applications of biomolecule-functionalized nanometer-sized doped silica particles. Anal Chim Acta 647:14-0 CrossRef
  12. Kickelbick G (2003) Concepts for the incorporation of inorganic building blocks into organic polymers on a nanoscale. Prog Polym Sci 28:83-14 CrossRef
  13. Lluch AV, Ferrer GG, Pradas MM (2009) Biomimetic apatite coating on P(EMA-co-HEA)/SiO₂ hybrid nanocomposites. Polymer 50:2874-884 CrossRef
  14. Lee LH, Chen WC (2001) High-refractive-index thin films prepared from trialkoxysilane-capped poly(methyl methacrylate)-titania materials. Chem Mater 13:1137-142 CrossRef
  15. Xiong PT, Lu DP, Chen PZ, Huang HZ, Guan R (2007) Preparation and surface properties of latexes with fluorine enriched in the shell by silicon monomer crosslinking. Eur Polym J 43:2117-126 CrossRef
  16. Cheng XL, Chen ZX, Shi TS, Wang HY (2007) Synthesis and characterization of core-shell LIPN-fluorine-containing polyacrylate latex. Colloid Surface A 292:119-24 CrossRef
  17. Ameduri B, Boutevin B, Kostov G (2001) Fluoroelastomers: synthesis, properties and applications. Prog Polym Sci 26:105-87 CrossRef
  18. He L, Liang JY (2008) Synthesis, modification and characterization of core-shell fluoroacrylate copolymer latexes. J Fluorine Chem 129:590-97 CrossRef
  19. Hansen NML, Jankova K, Hvilsted S (2007) Fluoropolymer materials and architectures prepared by controlled radical polymerizations. Eur Polym J 43:255-93 CrossRef
  20. Kostova G, Rousseaua A, Boutevina B, Pascal T (2005) Novel fluoroacrylated copolymers: synthesis, characterization and properties. J Fluorine Chem 126:231-40 CrossRef
  21. Cui XJ, Zhong SL, Gao Y, Wang HY (2008) Preparation and characterization of emulsifier-free core–shell interpenetrating polymer network-fluorinated polyacrylate latex particles. Colloid Surface A 324:14-1 CrossRef
  22. Chen LJ, Shi HX, Wu HK, Xiang JP (2010) Preparation and characterization of a novel fluorinated acrylate resin. J Fluorine Chem 131:731-37 CrossRef
  23. Lee JR, Jin FL, Park SJ, Park JM (2004) Study of new fluorine-containing epoxy resin for low dielectric constant. Surf Coat Technol 180-81:650-54 CrossRef
  24. Xiao XY, Wang Y (2009) Emulsion copolymerization of fluorinated acrylate in the presence of a polymerizable emulsifier. Colloids Surface A 348:151-56 CrossRef
  25. Li J, Fu J, Cong Y, Wu Y, Xue LJ, Han YC (2006) Macroporous fluoropolymeric films templated by silica colloidal assembly: a possible route to super-hydrophobic surfaces. Appl Surf Sci 252:2229-234 CrossRef
  26. Saidi S, Guittard F, Géribaldi S (2002) Monomers reactivity ratios of fluorinated acrylates-styrene copolymers. Polym Int 51:1058-062 CrossRef
  27. Lazzari M, Chiantore O, Castelvetro V (2001) Photochemical stability of partially fluorinated acrylic protective coatings: Part 3. copolymers of 1H,1H,2H,2H-perfluorodecyl acrylate and 2,2,2-trifluoroethyl methacrylate with butyl methacrylate. Polym Int 50:863-68 CrossRef
  28. Xiong SD, Guo XL, Li L, Wu SL, Chu PK, Xu ZS (2010) Preparation and characterization of fluorinated acrylate copolymer latexes by miniemulsion polymerization under microwave irradiation. J Fluorine Chem 131:417-25 CrossRef
  29. Pu FR, Williams RL, Markkula TK, Hunt JA (2002) Effects of plasma treated PET and PTFE on expression of adhesion molecules by human endothelial cells in vitro. Biomaterials 23:2411-428 CrossRef
  30. Liao WB, Qu JQ, Li Z, Chen HQ (2010) Preparation of organic/inorganic hybrid polymer emulsions with high silicon content and sol-gel-derived thin films. Chin J Chem Eng 18:156-63 CrossRef
  31. Qu AL, Wen XF, Pi PH, Cheng J, Yang ZR (2008) Synthesis of composite particles through emulsion polymerization based on silica/fluoroacrylate-siloxane using anionic reactive and nonionic surfactants. J Colloid Interf Sci 317:62-9 CrossRef
  32. St?ber W, Fink A, Bohn E (1968) Controlled growth of monodisperse silica spheres in the micron size range. J Colloid Interf Sci 26:62-9 CrossRef
  33. Philipse AP, Vrij A (1989) Preparation and properties of nonaqueous model dispersions of chemically modified, charged silica spheres. J Colloid Interf Sci 128:121-36 CrossRef
  34. Cui XJ, Zhong SL, Yan J, Wang CL, Zhang HT, Wang HY (2010) Synthesis and characterization of core-shell SiO₂-fluorinated polyacrylate nanocomposite latex particles containing fluorine in the shell. Colloid Surface A 360:41-6 CrossRef
  35. Chen YJ, Cheng SY, Wang YF, Zhang CC (2006) Chemical components and properties of core–shell acrylate latex containing fluorine in the shell and their films. J Appl Polym Sci 99:107-14 CrossRef
  
• 作者单位：Li Wang (1)
  Xiaolong Li (1)
  Mingfu Huang (1)
  Zushun Xu (1)
  Changfeng Yi (1)
  
  1. Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Youyi Road 368#, Wuchang District, Wuhan, 430062, Hubei, People’s Republic of China
  
• ISSN：1735-5265

文摘

The silica sol/fluoroacrylate core–shell nanocomposite emulsion was successfully synthesized via traditional emulsion polymerization through grafting of KH-570 onto silica particles. Comparing the performance of the polyacrylate copolymer, the fluorinated polyacrylate copolymer and the silica sol/fluoroacrylate core–shell nanocomposite emulsion, we can come to a conclusion that the silica sol/fluoroacrylate core–shell nanocomposite emulsion presents significantly excellent performance in all aspects. The products were characterized by Fourier transform infrared (FTIR), photon correlation spectroscopy (PCS), transmission electron microscopy (TEM), thermogravimetry (TGA), Contact angle and UV–vis analyses techniques. The chemical structure of polyacrylate copolymer, fluorinated polyacrylate copolymer and silica sol/fluoroacrylate nanocomposite were detected by FTIR. The size and stability of emulsion latex particles were determined by PCS technique. TEM analysis confirmed that the resultant latex particle has the core–shell structure, obviously. The water absorption and contact angle data also showed that the silica sol/fluoroacrylate nanocomposite film has good hydrophobic performance. TGA analysis indicated the weight loss of the silica sol/fluoroacrylate nanocomposite film begins at around 350?°C which testifies its good thermal stability. The UV–vis spectroscopy analysis showed that the silica sol/fluoroacrylate nanocomposite film possess UV–vis shielding effect when the added volume amount of KH570 modified silica sol is up to 5?mL. Therefore, the excellent properties of hydrophobicity, thermodynamics and resistance to ultraviolet provide the silica sol/fluoroacrylate nanocomposite film with potential applications in variety fields. In addition, the formation mechanism of core–shell structure silica sol/fluoroacrylate nanocomposite latex particles was speculated.