本文選題：種子聚合 + 化學(xué)鍍�。� 參考：《青島大學(xué)》2016年碩士論文

【摘要】：微米級與納米級的聚苯乙烯或二氧化硅微球可以作為空心微球、光子晶體以及多孔材料的模板,通過模板可以進一步制備核殼材料、復(fù)合膠體晶體以及三維有序大孔材料。核殼材料的良好均一性與分散性等優(yōu)點在導(dǎo)電膠膜與快速去污方面具有良好的應(yīng)用前景。基于PS/Ag復(fù)合材料制備的傳感器以及三維有序多孔碳修飾后的電極可以高效靈敏的檢測鹵素氣體或者藥物,并且具有重復(fù)性以及穩(wěn)定性,在鹵素氣體與藥物檢測方面有良好的應(yīng)用前景。本論文制備了PS/Ni核殼材料(Ni空心微球)、PS/Ag NPs復(fù)合膠體晶體以及三維有序多孔碳材料。并研究了其在各向異性導(dǎo)電膠膜、快速去污與萃取、氣體響應(yīng)性傳感器以及修飾電極方面的應(yīng)用。具體內(nèi)容如下:1、基于種子聚合改良的一種高效率的邊溶脹邊聚合方法制備出平均粒徑為6μm的聚苯乙烯微球聚合時間較傳統(tǒng)聚合方法的3天縮短為22 h。以聚苯乙烯微球作為模板,通過化學(xué)鍍鎳方法制備出PS/Ni核殼微球。此外,將PS/Ni核殼微球作為導(dǎo)電微球制備出各向異性導(dǎo)電膠膜。最后去除PS核得到Ni的空心微球并將其應(yīng)用于快速去污及萃取方面。2、用共沉積方法制備了光敏性的PS/AgBr復(fù)合膠體晶體,經(jīng)紫外光照射處理之后,填入的AgBr分解為納米Ag,得到了結(jié)構(gòu)顏色增強的PS/Ag NPs復(fù)合膠體晶體。Ag納米粒子增強結(jié)構(gòu)顏色是由于吸收非相關(guān)散射光并提高色彩飽和度。用光纖光譜儀研究了PS膠體晶體、PS/AgBr復(fù)合膠體晶體以及PS/AgNPs復(fù)合膠體晶體的帶隙并且分別與理論計算相對比。PS/Ag NPs復(fù)合膠體晶體可以作為檢測時間為50 s、檢測限為15 mmol/L的經(jīng)濟實用可量產(chǎn)的裸眼Br2傳感器。3、以膠體晶體為模板制備了高度結(jié)晶的三維有序大孔C_(60)材料并用掃描電鏡表征其內(nèi)部結(jié)構(gòu),之后用制備的三維有序大孔C_(60)修飾Au電極。此外,用三維有序大孔C_(60)修飾的金電極在0.1 mol/L的pH=6的PBS緩沖溶液中檢測不同濃度的多巴胺,表現(xiàn)出良好的效果并且其檢測限是2.1×10~(-9) mol/L。
[Abstract]:The polystyrene or silica microspheres of micron and nano-scale can be used as templates of hollow microspheres photonic crystals and porous materials through which the core-shell materials composite colloidal crystals and three-dimensional ordered macroporous materials can be further prepared. The advantages of good uniformity and dispersion of core-shell materials have a good application prospect in conductive film and rapid decontamination. Sensors based on PS/Ag composites and three dimensional ordered porous carbon modified electrodes can be used to detect halogen gases or drugs with high efficiency and sensitivity, and are reproducible and stable. It has a good application prospect in the detection of halogen gas and drugs. In this paper, the PS/Ni core-shell material, PS-Ni hollow microspheres, PS / Ag NPs composite colloid crystals and three-dimensional ordered porous carbon materials were prepared. Its applications in anisotropic conductive film, rapid decontamination and extraction, gas responsivity sensor and modified electrode were also studied. The main contents are as follows: 1. The polymerization time of polystyrene microspheres with an average diameter of 6 渭 m was shortened to 22 hours in 3 days compared with the conventional polymerization method, based on a highly efficient edge swelling edge polymerization method based on seed polymerization. PS/Ni core-shell microspheres were prepared by electroless nickel plating using polystyrene microspheres as template. In addition, PS/Ni core-shell microspheres were used as conductive microspheres to prepare anisotropic conductive adhesive films. Finally, the hollow microspheres of Ni were obtained by removing PS nucleus and used in rapid decontamination and extraction. Guang Min composite colloidal crystals of PS/AgBr were prepared by co-deposition. The filled AgBr is decomposed into nano-Ag.The structure color-enhanced PS/Ag NPs composite colloidal crystal. AG nanoparticles enhance the structure color is due to the absorption of uncorrelated scattering light and the increase of color saturation. The band gap of PS / AgBr composite colloid crystal and PS/AgNPs composite colloidal crystal were studied by optical fiber spectrometer. Compared with the theoretical calculation, the PS / Ag NPs composite colloid crystal can be used as the detection time of 50 s and the detection limit of 15 mmol/L. Using colloidal crystal as template, the highly crystallized three-dimensional ordered macroporous Che 60) material was characterized by scanning electron microscope (SEM), and its internal structure was characterized by scanning electron microscope (SEM). The au electrode was then modified with three dimensional ordered macroporous CST60). In addition, the gold electrode modified with three dimensional ordered macroporous CST60 showed good results in the detection of dopamine at different concentrations in the PBS buffer solution of 0.1 mol/L pH=6, and the detection limit was 2.1 脳 10 ~ (-9) mol 路L ~ (-1) 路mol ~ (-1) 路L ~ (-1) 路mol ~ (-1) 路L ~ (-1).
【學(xué)位授予單位】：青島大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TB33;TQ127.11

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本文編號：1909366