纳米银与基体P(AMPS-MMA)的相互作用研究  

STUDIES ON THE INTERACTION BETWEEN NANO-Ag AND P(AMPS-MMA)

作　　者：李德记[1] 徐国财[1] 陶玉红[1] 

机构地区：[1]安徽理工大学化学工程学院,淮南232001

出　　处：《高分子学报》2008年第4期378-382,共5页Acta Polymerica Sinica

基　　金：教育部科技基金重点项目(基金号206064);安徽省自然科学基金(基金号050440907)资助项目

摘　　要：在无引发剂和还原剂的条件下超声辐射双原位合成出纳米银，2-丙烯酰氨基-2-甲基丙磺酸与甲基丙烯酸甲酯共聚物[P（AMPS—MMA）]复合物。TEM表明，纳米银粒子的粒径5～15nm，均匀地分散在聚合物基体中；UV—Vis表明，超声时间影响纳米银的粒径大小及粒径分布；FT—IR、UV—Vis和荧光光谱表明纳米银与基体P（AMPS—MMA）之间存在一定的化学作用力；XPS证明了纳米银与基体P（AMPS—MMA）的作用力为纳米银与聚合物中酯基氧原子之间通过配位作用形成的化学作用力。Nano-silver/poly（2-acrylamido-2-methylpropanesulfonic acid-co-methyl methacrylate ） （P（AMPS-MMA）） composite materials were prepared with the silver nitrate solution containing AMPS and MMA without initiator or reducer, in which Ag^＋ ion was reduced to nano silver particles, and the monomers were polymerizated simultaneously by ultrasonic. Transmission electron microscopy （TEM） showed that nano-Ag particles were homogeniously dispersed in polymer martrix, and the size of particles was in the range of 5～15 nm. The results ofFourier transfer infrared spectrometer （FT-IR） suggested that the two characteristic peaks of the stretching vibration absorption peak of carbonyl at 1732 cm^-1 and the stretching vibration asymmetric absorption peak of C-O-C of esters at 1191 cm^-1 in the nano-Ag/P（AMPS-MMA） composite were shifted 13 cm^-1 and 15 cm^-1 compared to those of the P（AMPS-MMA） copolymer respectively; The rusults of fluorescence spectra indicated that there were two emission peaks appeared in the vicinity of 318 and 393 nm for the aqueous solution of nano-Ag/P（AMPS-MMA） composites .The testing results of UV-Vis spectrum showed that there was a characteristic absorption peak at 417 nm for nano-Ag/P （AMPS-MMA） copolymer solution, the absorption peak of silver nanoparticles in the nanocomposites solution was shiftted to long wavelength with the ultrasonic time; X-ray photoelectron spectroseopy （XPS） proved that the Ols binding energy （531.7 eV） of C=O and the Ols binding energy （533.4 eV） of C-O-C of nanocomposite copolymer reduced 0.4 eV and 0.5 eV respectively than the standards Ols binding energy（532.1 eV） of C=O and 533.9 eV of C-O-C .The specific interaction between carbonyl group in the composite copolymer and nano-Ag can be confirmed by the shift of the carbonyl Cls peak to lower binding energy. The interaction between nano silver and the functional group attached to polymer is considered to be of coordination. It is concluded that there is a kind of interac

关 键 词：超声 纳米银 纳米复合材料 聚合物 

分 类 号：TB383.1[一般工业技术—材料科学与工程]