Soap-free Cationic polystyrene microspheres were prepared by emulsion polymerization using a water soluble monomer Methacrylatoethyl trimethyl ammonium chloride (MADAC). Experimental studies were performed in detail to check the effect of the synthesis process of the microspheres, the MADAC dosage, and initiator dosage on the particle size and distribution. The chemical structure of latex particles was characterized by Fourier transform infrared spectroscopy. The micro-morphology of latex particles were observed by Transmission electron microscope. The results show that different particle sizes of polystyrene microspheres with good monodispersity were finally obtained by seeded semi-continuous emulsion polymerization.

Waterbased phenolic resin/silica hybrid material was prepared by situ polymerization using TEOS (tetraethyl orthosilicate) as precursor. Effects of pre-hydrolysis condition of TEOS and TEOS content on the formation and stabilization of the hybrid material were studied. The flammability of the prepared composite material was studied by TGA (Thermo gravimetric analysis), LOI (limited oxygen index) and UL-94 test. The results show that stable waterbased hybrid material can be prepared when the amount of ammonia is 0.020g. TGA, LIO and UL-94 test result show that the hybrid material presents better flame retardancy.

By modifying O-cresol Formaldehyde epoxy resin with DOPO and Diethanolamine, and then neutralized by acetic acid, phosphorous-containing epoxy emulsion with excellent flame retardancy can be obtained under strong agitation. Diethanolamine opening rate and neutralized degree to the formation of epoxy emulsion were optimized. The flame-retardant property of the cured phosphorous-containing epoxy resin was test by UL-94, LOI and TGA method. The result shows that when the opening rate of Diethanolamine is 25.0% and the neutralized degree is 95.0%, stable epoxy emulsion can be obtained. When phosphorus content of the epoxy resin was 3.0wt%, the LOI value of the resin can be reach to 39.2 and pass the UL-94 test，the 700°C char remaining is 30.0wt%. The result shows that the flame retardant mechanism of the phosphorous-containing epoxy resin is mainly through a condensed- phase mechanism.

Waterbased phosphorous modified phenolic resin was prepared by introducing a phosphorous monomer. Effect of phenol and aldehyde mol ratio and ODOPM content to the stability was studied. The flammability of the prepared composite material was studied by TGA (Thermo gravimetric analysis), LOI (limited oxygen index) and UL-94 test. The results show that stable phosphorous modified phenolic resin can be prepared. TGA, LIO and UL-94 test result show that the hybrid material presents better flame retardancy.

Fluorinated acrylate emulsion was prepared in the presence of TPG as co-solvent, effects of TPG content to the polymerization stability and monomer conversion of the prepared emulsion was studied by the coagulation ratio and conversion rate, respectively. The hydrophobicity and oleophilicity of the polymer film was studied by water/oil contact angle. The chemical structure and morphology of the latexes was studied by FTIR and TEM observation, respectively. The results show that TPG has great impact on the stability of emulsion polymerization and morphology of the latex particles. The prepared fluorinate poly-acrylate emulsion has excellent water/oil repellency and thermal stability.