목차

Chapter 1 Introduction 1
1. Introduction 2
1.1. Acrylic Pressure Sensitive Adhesives 2
1.1.1. Basic Properties 2
1.1.2. Preparation of Acrylic Pressure Sensitive Adhesive 5
1.1.3. Pressure Sensitive Adhesive for Mobile Displays 7
1.2. Photopolymerization 9
1.2.1. Photopolymerization by Photoinitiator 9
1.2.2. Photopolymerization by Photocatalyst 15
1.3. Application of Photocatalyst-mediated Photopolymerization 24
1.3.1. Hydrogel 24
1.3.2. Light-Driven 3D printing 26
1.3.3. Visible-Light-Curable Adhesive 32
2. Objectives 36
2.1. Driving the Catalytic Cycle by Typical Monomers for General PSA 39
2.2. Driving the Catalytic Cycle by Additives for OCA 40
2.3. Optimization of the Catalytic Cycle with Various Photocatalysts and Additives for UV-blocking OCA 41
Chapter 2 Experimental Section 43
1. Materials 44
1.1. Photocatalysts 44
1.2. Acrylic Monomers 45
1.3. Others 46
2. Preparation of Acrylic PSAs 48
2.1. Bulk Polymerization 48
2.2. Film Curing 53
3. Characterization of Acrylic PSAs 55
3.1. Gel Content 55
3.2. UV/Vis Spectroscopy 55
3.3. Adhesive Performances 56
3.3.1. 180 Peel Test 56
3.3.2. Loop Tack Test 57
3.3.3. Lap Shear Test 58
3.3.4. Holding Test 59
3.4. Viscoelasticity 60
3.4.1. Viscoelastic Window (Frequency-Sweep) 60
3.4.2. Temperature Sweep 62
3.4.3. Strain Recovery and Stress Relaxation 62
3.5. Folding Stability 63
3.5.1. Preparation of the Test Specimens 63
3.5.2. Dynamic Folding Test 63
3.5.3. Evaluation of the Folding Stability 66
Chapter 3 Results and discussion 67
1. Driving the Catalytic Cycle by Typical Monomer for General PSA 68
1.1. Strategy 68
1.2. Preparation of Visible-Light-Curable Acrylic PSAs 69
1.2.1. Bulk Polymerization 69
1.2.2. Film Curing 78
1.3. Characterization of Visible-Light-Curable Acrylic PSAs 81
1.3.1. Viscoelasticity 81
1.3.2. Physical Properties and Adhesive Performances 87
1.4. Conclusions 94
2. Driving the Catalytic Cycle by Additives for OCA 95
2.1. Strategy 95
2.2. Preparation of Visible-Light-Curable Acrylic OCAs 99
2.2.1. Bulk Polymerization 99
2.2.2. Film Curing 108
2.3. Characterization of Visible-Light-Curable Acrylic OCAs 110
2.3.1. Gel Content 110
2.3.2. Transparency 113
2.3.2. Physical Properties and Adhesive Performances 116
2.4. Conclusions 120
3. Optimization of the Catalytic Cycle with Various Photocatalysts and Additives for UV-blocking OCA 121
3.1. Strategy 121
3.1.1. Designing photocatalysts and Reductants 121
3.1.2. Hybrid Reductant 124
3.1.3. Monomer Composition 128
3.2. Preparation of Visible-Light-Curable Acrylic OCAs 129
3.2.1. Bulk Polymerization 129
3.2.2. Film Curing 140
3.3. Characterization of Visible-Light-Curable Acrylic OCAs 143
3.3.1. Physical Properties and Adhesive Performances 143
3.3.2. Viscoelasticity 153
3.3.3. Folding Stability 158
3.4. Preparation and Characterization of UV-blocking OCAs 164
3.4.1. UV-Protection 164
3.4.2. Physical Properties and Adhesive Performances 168
3.4.3. Viscoelasticity 169
3.4.4. Folding Stability 171
3.5. Conclusions 174
Chapter 4 Conclusions 175
1. Conclusions 176
1.1. Driving the Catalytic Cycle by Typical Monomer for General PSA 176
1.2. Driving the Catalytic Cycle by Additives for OCA 177
1.3. Optimization of the Catalytic Cycle with Various Photocatalysts and Additives for UV-blocking OCA 178
References 179
초록 194