| | Contents | |
| | | |
| |
| | Preface | XV |
| | List of Contributors | XVII |
| | Polymer Brushes: On the Way to Tailor-Made Surfaces Jürgen Rühe | 1 |
| 1 | Growth of Polymer Molecules at Surfaces: Introductory Remarks | 1 |
| 2 | Coatings: From First Principles to High-Tech Applications | 3 |
| 3 | Surface-Coating Techniques | 6 |
| 4 | Surface-Attached Polymers | 10 |
| 5 | Polymer Brushes: General Features | 13 |
| 6 | Theory of Polymer Brushes | 15 |
| 7 | Synthesis of Polymer Brushes | 18 |
| 8 | Polymer Brushes as Functional Materials | 22 |
| 9 | Microstructured Polymer Brushes | 24 |
| 10 | Surface-Initiated Polymerization: The Overall Picture | 28 |
| | | |
| Part I | Synthesis | 33 |
| | | |
| 1 | Recent Advances in Polymer Brush Synthesis Anthony M. Granville and William J. Brittain | 35 |
| 1.1 | Introduction | 35 |
| 1.2 | "Grafting To" Synthesis Technique | 37 |
| 1.3 | "Grafting From" Synthesis Technique | 41 |
| 2 | Polymer Brushes by Atom Transfer Radical Polymerization Jeffrey Pyun, Tomasz Kowalewski, and Krzysztof Matyjaszewski | 51 |
| 2.1 | Introduction | 51 |
| 2.2 | Polymer Brushes on Flat Surfaces | 52 |
| 2.2.1 | Controlled ATRP from Flat Surfaces | 53 |
| 2.2.2 | Block Copolymer Brushes on Flat Surfaces | 54 |
| 2.2.3 | Stimuli-Responsive Ultrathin Films from "Grafting To" Approach | 55 |
| 2.3 | Polymer Brushes from Particles | 57 |
| 2.3.1 | Spherical Brushes from Inorganic Colloids | 58 |
| 2.3.2 | Multilayered Core-Shell Colloids | 58 |
| 2.3.3 | Imaging of Individual Spherical Brushes | 61 |
| 2.3.4 | Modification of Carbon Black Fillers | 63 |
| 2.4 | Molecular Brushes | 63 |
| 2.4.1 | Synthesis of Molecular Brushes from Linear Polymeric Macroinitiators | 64 |
| 2.4.2 | Molecular Brushes from Dendritic Macroinitiators | 65 |
| 3 | Polymer Brushes by Atom Transfer Radical Polymerization Initiated from Macroinitiator Synthesized on the Surface Viktor Klep, Bogdan Zdyrko, Yong Liu, and Igor Luzinov | 69 |
| 3.1 | Introduction | 69 |
| 3.2 | Experimental | 72 |
| 3.3 | Results and Discussion | 73 |
| 3.3.1 | Synthesis of Macroinitiator for ATRP | 73 |
| 3.3.2 | ATRP from Macroinitiator | 77 |
| 4 | Synthesis of Polypeptide Brushes Henning Menzel and Peter Witte | 87 |
| 4.1 | Introduction | 87 |
| 4.2 | Preparation of Peptide Brushes by "Grafting To" | 88 |
| 4.3 | Preparation of Peptide Brushes by Grafting From Polymerization | 90 |
| 4.3.1 | Mechanisms of NCA Polymerization | 90 |
| 4.3.2 | Amine-Initiated Grafting From Polymerizations in Solution | 93 |
| 4.3.3 | Other Techniques for Amine-Initiated Grafting From Polymerizations | 94 |
| 4.4 | Preparation of Peptide Brushes by Living Grafting From Polymerization | 95 |
| 4.4.1 | Copolymerization Approach | 95 |
| 4.4.2 | Alloc-Amide Approach | 99 |
| 5 | Bottle Brush Brushes: Ring-Opening Polymerization of Lactide from Poly(hydroxyethyl methacrylate) Surfaces Jong-Bum Kim, Wenxi Huang, Chun Wang, Merlin Bruening, and Gregory L. Baker | 105 |
| 5.1 | Introduction | 105 |
| 5.2 | Synthesis of PHEMA-g-PLA | 109 |
| 5.3 | Conclusions and Implications for Future Studies | 114 |
| 5.4 | Experimental Section | 115 |
| 5.4.1 | Materials | 115 |
| 5.4.2 | Preparation of Monomer Solution and Substrates | 115 |
| 5.4.3 | Ring-Opening Polymerization from PHEMA Surface | 115 |
| 5.4.4 | Analytical Methods | 115 |
| 6 | Preparation of Well-Defined Organic-Inorganic Hybrid Nanostructures using Living Cationic Surface-Initiated Polymerization from Silica Nanoparticles Il-Jin Kim, Su Chen, and Rudolf Faust | 119 |
| 6.1 | Introduction | 119 |
| 6.2 | Experimental Section | 120 |
| 6.2.1 | Materials | 120 |
| 6.2.2 | Characterization | 120 |
| 6.2.3 | Synthesis of Immobilized Macroinitiators | 121 |
| 6.3 | Results and Discussion | 122 |
| 6.3.1 | Living Cationic Surface-Initiated Polymerization of IB from Silica Nanoparticles in the Presence of Sacrificial Free Initiator | 122 |
| 6.3.2 | Living Cationic Surface-Initiated Polymerization of IB from Silica Macroinitiators | 125 |
| 7 | Photoinitiated Polymerization from Self-Assembled Monolayers Daniel J. Dyer, Jianxin Feng, Charles Fivelson, Rituparna Paul, Rolf Schmidt, and Tongfeng Zhao | 129 |
| 7.1 | Introduction | 129 |
| 7.2 | Substrates | 131 |
| 7.2.1 | Silicon, Silica and Glass | 131 |
| 7.2.2 | Planar Gold | 131 |
| 7.2.3 | Nanoparticles | 133 |
| 7.3 | Photoinitiated Radical Polymerization Mechanisms | 133 |
| 7.3.1 | Free Radicals | 133 |
| 7.3.2 | Photosensitizers | 134 |
| 7.3.3 | Photo-Iniferters | 135 |
| 7.4 | Polymerization from AIBN-type SAMs | 135 |
| 7.4.1 | Design and Synthesis | 135 |
| 7.4.2 | Monolayer Characterization | 137 |
| 7.4.3 | Polymerization of Styrene | 138 |
| 7.5 | Conclusions and Future Studies | 143 |
| 7.6 | Experimental | 144 |
| 7.6.1 | Initiator Synthesis | 144 |
| 7.6.2 | Polymerizations | 145 |
| 7.6.3 | Reflection Absorption Infrared Spectroscopy (FT-RAIRS) Measurements | 146 |
| 7.6.4 | Ellipsometry | 146 |
| 7.6.5 | X-Ray Photoelectron Spectroscopy (XPS) | 146 |
| 7.6.6 | Molecular Weight Measurements | 147 |
| 7.6.7 | Molecular Modeling | 147 |
| 8 | Recent Advances in the Synthesis and Rearrangement of Block Copolymer Brushes Stephen G. Boyes, Anthony M. Granville, Marina Baum, Bulent Akgun, Brian K. Mirous, and William J. Brittain | 151 |
| 8.1 | Introduction and Background | 151 |
| 8.2 | Controlled/"Living" Free Radical Polymerization | 153 |
| 8.2.1 | Atom Transfer Radical Polymerization (ATRP) | 153 |
| 8.3 | Synthesis of Block Copolymer Brushes | 154 |
| 8.3.1 | Diblock Copolymer Brushes | 154 |
| 8.3.2 | Triblock Copolymer Brushes | 158 |
| 8.4 | Rearrangement of Block Copolymer Brushes | 160 |
| 8.4.1 | Rearrangement of Diblock Copolymer Brushes | 160 |
| 9 | Surface-Grafted Hyperbranched Polymers Hideharu Mori and Axel H. E. Müller | 167 |
| 9.1 | Introduction | 167 |
| 9.2 | "Grafting To" Approach | 170 |
| 9.2.1 | Synthesis of 2D Hybrids by "Grafting To" | 170 |
| 9.2.2 | Synthesis of 3D Hybrids by "Grafting To" | 171 |
| 9.3 | Multi-Step Grafting Approach | 172 |
| 9.3.1 | "Grafting To-Grafts" | 172 |
| 9.3.2 | "Grafting From-Grafts" | 173 |
| 9.4 | "Grafting From" Approach | 173 |
| 9.4.1 | Synthesis of 2D Hybrids by Surface-Initiated, Self-Condensing Vinyl (Co)polymerization | 175 |
| 9.4.2 | Synthesis of 3D Hybrids by Surface-Initiated Self-Condensing Vinyl (Co)polymerization | 178 |
| 9.4.3 | Theoretical Considerations | 181 |
| 9.4.4 | Other Systems | 182 |
| | | |
| Part II | Characterization | 187 |
| | | |
| 10 | The Analysis and Characterization of Polymer Brushes: From Flat Surfaces to Nanoparticles Rigoberto C. Advincula | 189 |
| 10.1 | Introduction | 190 |
| 10.1.1 | Polymer Brushes | 190 |
| 10.1.2 | SIP on Flat Surfaces and Particle Substrates | 192 |
| 10.2 | Characterization of Ultrathin Polymer Films and Polymer Brushes | 193 |
| 10.2.1 | Spectroscopy and Optical Techniques | 194 |
| 10.2.2 | Microscopy | 195 |
| 10.2.3 | Other Methods | 196 |
| 10.3 | Investigating Polymer Brush Systems | 198 |
| 10.3.1 | Characterization of the Step-by-Step Procedure | 198 |
| 10.3.2 | Investigating the Different Regimes of Polymer Brush Conformation on Surfaces | 199 |
| 10.3.3 | Investigating Phase Segregation and Formation of Patterns | 200 |
| 10.3.4 | Polymerization Mechanism | 201 |
| 10.3.5 | Patterning Using Nonlithographic Methods | 204 |
| 10.4 | The Importance of Characterizing Particles and Nanoparticles | 204 |
| 10.5 | Characterization and Analysis Methods for Polymer Brushes on Particles | 205 |
| 10.5.1 | In-Situ Investigations on Particles | 206 |
| 10.5.2 | Degrafted Polymers from Particles | 208 |
| 11 | Characterization of Polymer Brushes on Nanoparticle Surfaces Thomas A. P. Seery, Mark Jordi, Rosette Guino, and Dale Huber | 213 |
| 11.1 | Introduction | 213 |
| 11.2 | Experimental | 215 |
| 11.2.1 | Materials | 215 |
| 11.2.2 | Instrumentation | 215 |
| 11.2.3 | Pyrolysis GC-MS | 216 |
| 11.2.4 | Infrared Monitoring of Polymer Formation | 216 |
| 11.2.5 | Synthesis of Alkanethiol-Stabilized Gold Nanoparticles | 217 |
| 11.2.6 | Synthesis of Stober Silica Nanoparticles | 218 |
| 11.2.7 | Synthesis of NCSEOS | 218 |
| 11.2.8 | Synthesis of BCH, NCSEOS, and TMEOS-Coated Nanoparticles | 218 |
| 11.2.9 | Synthesis of TMEOS Silica-Polymer Mixture | 219 |
| 11.2.10 | Synthesis of Silica-Poly(norbornene) Nanocomposites | 219 |
| 11.2.11 | Isolation of Grafted Polymer Chains | 220 |
| 11.2.12 | Polymer Stability Test | 220 |
| 11.3 | Results and Discussion | 221 |
| 12 | Spherical Polyelectrolyte Brushes Matthias Ballauff | 231 |
| 12.1 | Introduction | 231 |
| 12.2 | Synthesis and Characterization | 234 |
| 12.2.1 | Determination of Core Radius R, Contour Length LC, and Grafting Density | 234 |
| 12.2.2 | Titration Curve | 235 |
| 12.3 | Experimental Verification of Theoretical Predictions | 236 |
| 12.3.1 | Confinement of the Counterions | 237 |
| 12.3.2 | Correlation of the Counterions to the Macroion | 238 |
| 12.4 | Flow Behavior | 240 |
| 12.5 | Applications | 242 |
| 12.5.1 | Interaction with Charged Surfaces | 242 |
| 12.5.2 | Interaction with Proteins in Solution | 243 |
| 13 | Weak Polyelectrolyte Brushes: Complex Formation and Multilayer Build-up with Oppositely Charged Polyelectrolytes Rupert Konradi, Haining Zhang, Markus Biesalski, and Jürgen Rühe | 249 |
| 13.1 | Introduction | 249 |
| 13.2 | Synthesis and Data Evaluation | 251 |
| 13.2.1 | Synthesis | 251 |
| 13.2.2 | Multiple-Angle Nulling Ellipsometry | 252 |
| 13.3 | Swelling Behavior of Weak Polyelectrolyte Brushes in Aqueous Environments | 253 |
| 13.3.1 | The Influence of pH Value | 254 |
| 13.3.2 | Interaction with Monovalent Cations | 254 |
| 13.3.3 | Interaction with Divalent Cations | 257 |
| 13.3.4 | Interaction with a Trivalent Cation: Aluminum | 263 |
| 13.3.5 | A Classification | 264 |
| 13.4 | Interaction Between Polyelectrolyte Brushes and Oppositely Charged Polyelectrolytes in Solution | 265 |
| 13.4.1 | The Formation of Surface-Attached PEL-PEL Complexes | 265 |
| 13.4.2 | The Formation of PEL Multilayer Assemblies | 268 |
| 14 | Structure and Properties of High-Density Polymer Brushes Yoshinobu Tsujii, Muhammad Ejaz, Shinpei Yamamoto, Kohji Ohno, Kenji Urayama, and Takeshi Fukuda | 273 |
| 14.1 | Introduction | 273 |
| 14.2 | Controlled Synthesis of High-Density Polymer Brush by ATRP | 274 |
| 14.3 | Structure and Properties of High-Density PMMA Brushes | 277 |
| 14.3.1 | Swollen Brushes | 277 |
| 14.3.2 | Dry Brushes | 279 |
| 14.4 | Application of High-Density Polymer Brushes | 282 |
| 15 | Behavior of Surface-Anchored Poly(acrylic acid) Brushes with Grafting Density Gradients on Solid Substrates Tao Wu, Jan Genzer, Peng Gong, Igal Szleifer, Petr Vl ek, and Vladimír ubr | 287 |
| | Glossary | 287 |
| 15.1 | Introduction | 288 |
| 15.2 | Experimental Section | 292 |
| 15.2.1 | Formation of the Gradient of the Polymerization Initiator | 292 |
| 15.2.2 | Preparation of PtBA and Hydrolysis into PAA | 293 |
| 15.2.3 | Polymer Characterization | 294 |
| 15.3 | Theory Section | 296 |
| 15.4 | Experimental Results | 300 |
| 15.5 | Discussion | 304 |
| 15.5.1 | Surface Hydrolysis of PtBA | 304 |
| 15.5.2 | Dependence of H on Ionic Strength | 306 |
| 15.5.3 | Dependence of H on the PAA Grafting Density | 308 |
| 15.5.4 | Molecular Insight from Calculations | 310 |
| 16 | Kinetics of Polymer Brush Formation With and Without Segmental Adsorption Lynn S. Penn, Heqing Huang, Roderic P. Quirk, and Tae H. Cheong | 317 |
| 16.1 | Introduction | 317 |
| 16.2 | Experimental | 320 |
| 16.2.1 | Synthesis and Characterization of Amine Chain-End Functionalized Polystyrene | 320 |
| 16.2.2 | Introduction of Active Sites to Surface of Solid | 320 |
| 16.2.3 | Tethering Reactions in Good Solvent | 320 |
| 16.2.4 | Tethering Reactions in Poor Solvent | 321 |
| 16.2.5 | Monitoring the Tethering Reactions | 321 |
| 16.3 | Results and Discussion | 323 |
| 16.3.1 | Results in Absence of Segmental Adsorption | 323 |
| 16.3.2 | Results in the Presence of Segmental Adsorption | 325 |
| | | |
| Part III | Applications | 329 |
| | | |
| 17 | Applications of Polymer Brushes and Other Surface-Attached Polymers Kenneth C. Caster | 331 |
| 17.1 | Introduction | 331 |
| 17.2 | Surface Modification and Functionalization | 332 |
| 17.2.1 | Polymerization Methodologies for Surface-Attached Polymers | 332 |
| 17.2.2 | Property Control | 336 |
| 17.2.3 | Impact on Types of Materials | 336 |
| 17.3 | Applications | 336 |
| 17.3.1 | Adhesion | 337 |
| 17.3.2 | Tribology | 341 |
| 17.3.3 | Stabilization and Compatiblization | 341 |
| 17.3.4 | Surface Coatings | 343 |
| 17.3.5 | Stimuli-Responsive and Switchable Surfaces | 345 |
| 17.3.6 | Separations | 346 |
| 17.3.7 | Nanofabrication | 349 |
| 17.3.8 | Surfaces for Electronics | 350 |
| 17.3.9 | Other Uses | 351 |
| 17.4 | Future Prospects | 351 |
| | Appendix | 353 |
| 18 | Polymer Brushes: Towards Applications Gregory L. Whiting, Tamer Farhan, and Wilhelm T. S. Huck | 371 |
| 18.1 | Introduction | 371 |
| 18.2 | Experimental | 372 |
| 18.2.1 | Materials | 372 |
| 18.2.2 | Characterization | 373 |
| 18.2.3 | Synthesis of Triphenylamine Acrylate (TPAA) Monomer | 373 |
| 18.2.4 | Synthesis and Deposition of Trichlorosilane ATRP Initiator | 373 |
| 18.2.5 | Surface-Initiated Polymerizations | 373 |
| 18.3 | Results and Discussion | 374 |
| 18.3.1 | Kinetics of Surface-Initiated ATRP of MMA from Silicon | 374 |
| 18.3.2 | Surface-Initiated ATRP from Polymeric Substrates | 375 |
| 18.3.3 | Synthesis of Conjugated Polymer Brushes from ITO | 377 |
| 19 | Polymerization, Nanopatterning and Characterization of Surface-Confined, Stimulus-Responsive Polymer Brushes Marian Kaholek, Woo-Kyung Lee, Bruce LaMattina, Kenneth C. Caster, and Stefan Zauscher | 381 |
| 19.1 | Introduction | 381 |
| 19.2 | Experimental | 382 |
| 19.2.1 | Materials | 382 |
| 19.2.2 | Substrates | 383 |
| 19.2.3 | Preparation of Initiator Monolayers | 383 |
| 19.2.4 | Nanopatterning of Initiator | 383 |
| 19.2.5 | NIPAAM Polymerization | 384 |
| 19.2.6 | Polymer Characterization | 385 |
| 19.3 | Results and Discussion | 386 |
| 19.3.1 | Surface-Initiated Bulk Polymerization | 386 |
| 19.3.2 | Phase Behavior and Mechanical Characterization | 390 |
| 19.3.3 | Surface Force Measurements | 393 |
| 19.3.4 | Nano-Patterning | 396 |
| 20 | Mixed Polymer Brushes: Switching of Surface Behavior and Chemical Patterning at the Nanoscale Sergiy Minko, Marcus Müller, Valeriy Luchnikov, Mikhail Motornov, Denys Usov, Leonid Ionov, and Manfred Stamm | 403 |
| 20.1 | Introduction | 403 |
| 20.2 | Theory of Mixed Polymer Brushes | 404 |
| 20.3 | Synthesis of Mixed Brushes | 409 |
| 20.3.1 | The "Grafting To" Method | 409 |
| 20.3.2 | The "Grafting From" Method | 411 |
| 20.4 | Experimental Study of Phase Segregation in Mixed Brushes | 412 |
| 20.5 | Adaptive Responsive Behavior: Regulation of Wetting and Adhesion | 417 |
| 20.6 | Patterning of Mixed Brushes | 420 |
| 21 | Local Chain Organization of Switchable Binary Polymer Brushes in Selective Solvents Melbs C. LeMieux, Denys Usov, Sergiy Minko, Manfred Stamm, and Vladimir V. Tsukruk | 427 |
| 21.1 | Introduction | 427 |
| 21.1.1 | Polymer Surface Modification | 427 |
| 21.1.2 | Polymer Brushes | 428 |
| 21.1.3 | Binary Polymer Brushes | 429 |
| 21.2 | Experimental | 431 |
| 21.2.1 | Materials and Synthesis | 431 |
| 21.2.2 | Methods | 432 |
| 21.3 | Results and Discussion | 433 |
| 21.3.1 | Dry State Analysis | 433 |
| 21.3.2 | Morphology in Solvent | 434 |
| 21.3.3 | Mechanical Response in Solvent | 437 |
| 22 | Motion of Nano-Objects Induced by a Switchable Polymer Carpet Svetlana Prokhorova, Alexey Kopyshev, Ayothi Ramakrishnan, and Jürgen Rühe | 441 |
| 22.1 | Introduction | 441 |
| 22.2 | Materials | 443 |
| 22.3 | Results and Discussion | 444 |
| 23 | Photochemical Strategies for the Preparation and Microstructuring of Densely Grafted Polymer Brushes on Planar Surfaces Oswald Prucker, Rupert Konradi, Martin Schimmel, Jörg Habicht, In-Jun Park, and Jürgen Rühe | 449 |
| 23.1 | Introduction | 449 |
| 23.1.1 | Topological and Chemical Patterning of Surfaces | 449 |
| 23.1.2 | Photochemical Pathways for Grafting Polymers onto Surfaces: A Literature Survey | 451 |
| 23.2 | General Features of Surface-Initiated Polymerization from Monolayers of Azo Initiators | 453 |
| 23.3 | Photolithographic Procedures for the Generation of Microstructured Polymer Brushes on Planar Surfaces | 455 |
| 23.3.1 | Photoablation of Polymer Brushes | 455 |
| 23.3.2 | Photoablation/Photodecomposition of the Initiator Layer followed by Thermal Polymerization | 460 |
| 23.3.3 | Patterning by Photopolymerization | 462 |
| 23.4 | Multifunctional Patterns | 465 |
| 23.5 | Applications of Photostructured Polymer Brushes | 466 |
| | Index | 471 |