摘要采用饥饿态半连续种子乳液聚合法，以十二烷基硫酸钠（SDS）/烷基酚聚氧乙烯醚（OP-10）作为复合乳化剂，以甲基丙烯酸十二氟庚酯（DFMA）为含氟单体，以过硫酸钾（KPS）为引发剂，以丙烯酸丁酯（BA）、甲基丙烯酸甲酯（MMA）和含氟单体作为原料，合成具有核壳结构的氟丙烯酸酯共聚物乳液，通过接触角测量仪、透射电镜（TEM）、傅里叶红外光谱（FTIR）和差式扫描量法（DSC）等分析手段对制备的共聚物结构和其疏水性能进行表征。结果表明：获得了BA/MMA/DFMA的共聚物乳液，且乳液具有明显的核壳结构，含氟共聚物具有好的疏水性，水的接触角最大达到102°，当含氟量为大于20%时疏水性基本不变。63842

毕业论文关键词：含氟共聚物；饥饿态半连续种子乳液聚合；核壳结构；制备；性能

毕业设计说明书（论文）外文摘要

Title  Prepared fluorinated acrylate copolymer and study its hydrophobic properties

Abstract The fluorinated acrylate copolymer emulsion with blue-fluorescence and core-shell structure was prepared by the starved semi-continuous seed emulsion polymerization. The sodium dodecyl sulfate(SDS) and alkylphenol ethoxylates (OP-10) served as compound emulsifier , butyl acrylate (BA) and methyl methacrylate (MMA) as the non- fluorinated monomers , dodecafluoro- heptyl methacrylate(DFMA) served as the fluorinated monomers . The structure and hydrophobic properties of the prepared DFMA-BA-MMA copolymers were characterized by contact angel measurement , Fourier transform infrared spectroscopy (FT-IR) , differential scanning calorimetry (DSC) and transmission electron microscope (TEM) . It was found that the fluorinated acrylate copolymers were the typical core-shell structure . The prepared DFMA-BA-MMA were found to be good copolymers with hydrophobicity , the most water contact angel is 102°. Finally ,  when the DFMA contain in the prepared DFMA-BA-MMA is 20%(wt) , the water contact angel most no change .

Key words：Fluorinated copolymer ; Starved semi-continuous seed emulsion polymerization ; Core-shell structure ; Preparation ; Properties

目录

1  绪论 1

1.1  含氟聚合物简介 1

1.1.1  含氟聚合物的发展历史 1

1.1.2  含氟丙烯酸酯聚合物的应用 2

1.2  含氟共聚物的制备 4

1.2.1  含氟丙烯酸酯单体的类型 4

1.3  含氟丙烯酸酯共聚物的合成方法 5

1.3.1  溶液聚合 5

1.3.2  乳液聚合 6

1.3.3  “活性”/可控自由基聚合(CRP) 10

1.4  本论文的研究意义及研究目的 10

2  实验部分 11

2.1  实验原料 11

2.2  实验器材 11

2.3  实验步骤 12

2.4  测试与表征 12

2.4.1  乳液的贮存稳定性的测定 13

2.4.2  共聚物的红外光谱表征 13

2.4.3  DSC热分析 13

2.4.4  TEM 13

2.4.5  共聚物膜的吸水率的测定 13