MSAMaterials Sciences and Applications2153-117XScientific Research Publishing10.4236/msa.2020.1110047MSA-103859ArticlesChemistry&Materials Science Preparation of Black Poly(Methyl Methacrylate-Ethyleneglycol Dimethacrylate) Microspheres Using Metallic Complex Dyes Shen-KungLiao1Shin-BinWu1Chie-HaoChao1*Department of Fiber and Composite Materials, Feng Chia University, Taiwan16102020111069271322, September 202027, October 2020 30, October 2020© Copyright 2014 by authors and Scientific Research Publishing Inc. 2014This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/

In this study, we synthesized polymethyl methacrylate cross-linked microspheres and functionalized the surface of the microspheres with amine groups, and discussed the effect of functionalization and the change of the surface morphology of the microspheres. This research uses 1:2 metal composite acid dye to dye self-synthesized microspheres with uniform particle size, and successfully prepares black polymethyl methacrylate cross-linked microspheres, which are applied to spacer microspheres.

PMMA Microsphere Metallic Complex Dye Crosslinked1. Introduction

A polymer sphere is a substance in which a plurality of polymer chains are wound and stacked on each other and are present in a spherical structure. Polymer spheres with different compositions, particle sizes, appearances and structures have their own unique properties and can be widely used in daily life. The preparation methods of polymer microspheres are shown in Figure 1, and the synthetic raw materials can be roughly distinguished. There are two types, one is a polymerization reaction or a polycondensation reaction starting from a monomer to synthesize microspheres, and the other is a polymer solution which is treated by physical or chemical means to form microspheres (particles).

The LCD screen is mixed with the “spacer microspheres” in the liquid crystal and “standing” between the glass panels. It mainly functions as a “skeleton” and is placed between two substrates filled with liquid crystal material to provide support for the liquid crystal cell. The gap can precisely control the thickness of the glass substrate and the liquid crystal layer. Since the liquid crystal layer has a uniform thickness and a load-bearing capacity, the spacer polymer microspheres need a high particle size uniformity, and the average particle diameter is between 3 and 7 micrometers. It has elasticity, high mechanical strength, smooth surface, high cleanliness and extremely low metal impurities. Therefore, the commonly used spacers are rod-shaped and spherical, mainly spherical, and the materials are made of polymer and glass. The most common, the glass material is cheaper, the particle size is easy to control, but it is easy to scratch the glass substrate or the electrode; the polymer material is soft, the particle size uniformity is not easy to control, and when the material is shaken, it is easy to cause the movement of the microsphere (Table 1). It is a comparison of the uniformity of the particle size of the microspheres, but the application process of the polymer sphere is simple and is the mainstream product on the market. Today, the LCD industry

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