本實驗以高折射率銀奈米微粒、高折射率非反應型diphenyl sulfide (DS)、低折射率單體methyl methacrylate (MMA)，及azobisisobutyronitrile (AIBN)為起始劑，利用離心擴散聚合法製作GRIN型塑膠光纖棒。
藉由AOT/isooctane/H2O及AOT/MMA/H2O逆微胞系統製備銀奈米微粒，其在不同製備變因下UV吸收光譜的特性差異、所形成之最終粒子大小，以及導入塑膠光纖棒後之光學特性影響，本論文均有詳細探討。
由結果得知，銀奈米微粒的平均粒徑介於3~11nm之間，隨著水與界面活性劑莫耳比(W值)的增加而增加。在W值固定下，銀奈米微粒的粒徑也隨著AgNO3濃度與NaBH4濃度的提高而增大，但AOT濃度的增加，對粒徑並無顯著的影響。使用主鏈較長之油相溶劑，所製得的銀奈米微粒粒徑較小。
此外，銀奈米微粒可被導入塑膠光纖中，且可以有效增大光纖折射率差，提昇光學特性。但無機微粒之導入量會受限於製程中界面活性劑之存在，添加過量會導致不透明化。

GRIN plastic rods were fabricated by the method of centrifugal diffusing polymerization. Silver nanoparticles and diphenyl sulfide (DS) were used as non-reactive high refractive index monomers and methyl methacrylate (MMA) was used as a reactive low refractive index monomer; azobisisobutyronitrile (AIBN) was used as an initiator in this investigation.
The silver nanoparticles were prepared in AOT/isooctane/H2O and AOT/MMA/H2O reverse micellar systems. Dependence of parameters on the UV absorption spectra and the nanoparticle sizes were studied in detail. The optical characteristics of GRIN plastic rods with various amounts of silver nanoparticles were also estimated.
It was found that the diameters of silver nanoparticles ranged between 3 and 11 nm, increased with increasing the molar ratio of water to surfactant (W value). At a constant W value, the sizes of silver nanoparticles were found to increase with increasing of the concentrations of AgNO3 and NaBH4 , but were not significantly affected by AOT concentrations. The nanoparticle size would become smaller when the oily solvents with long mainchain were used.
In addition, the silver nanoparticles could be introduced into GRIN rods and increased the refractive index difference effectively. The amounts of inorganic nanoparticles introduced into GRIN rods were limited due to the formation of surfactant clusters in the plastic rods. The existence of surfactant may cause the aggregation of nanoparticles leading to the occurance of light scattering and becoming opaque.

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