Hyperbranched Polymers

A much-needed overview of the state of the art of hyperbranched
polymers

The last two decades have seen a surge of interest in
hyperbranched polymers due to their ease of synthesis on a large
scale and their promising applications in diverse fields, from
medicine to nanotechnology.

Written by leading scientists in academia and industry, this
book provides for the first time a comprehensive overview of the
topic, bringing together in one complete volume a wealth of
information previously available only in articles scattered across
the literature. Drawing on their work at the cutting edge of this
dynamic area of research, the authors cover everything readers need
to know about hyperbranched polymers when designing highly
functional materials. Clear, thorough discussions include:

• How irregular branching affects polymer properties and their
  potential applications

• Important theoretical basics, plus a useful summary of
  characterization techniques

• How hyperbranched polymers compare with dendrimers as well as
  linear polymers

• Future trends in the synthesis and application of hyperbranched
  polymers

Geared to novices and experts alike, Hyperbranched
Polymers is a must-have resource for anyone working in polymer
architectures, polymer engineering, and functional materials. It is
also useful for scientists in related fields who need a primer on
the synthesis, theory, and applications of hyperbranched
polymers.

Autorentext

Deyue Yan, PhD, is a professor at the School of Chemistry
and Chemical Engineering of Shanghai Jiao Tong University, P.R.
China, and a member of the Chinese Academy of Sciences. Dr. Yan has
served on the editorial board of Macromolecular Theory and
Simulations and is currently on the editorial board of the
Chinese Journal of Polymer Science.

Chao Gao, PhD, is Professor in the Department of Polymer
Science and Engineering at Zhejiang University, P.R. China. Dr. Gao
also serves on the editorial advisory boards of the Open
Macromolecules Journal and the Open Process Chemistry
Journal.

Holger Frey, PhD, is Full Professor of Organic and
Macromolecular Chemistry at the Institute of Organic Chemistry at
Johnannes Gutenberg University Mainz, Germany. Dr. Frey has served
on the editorial advisory boards of several polymer journals.

Zusammenfassung
A much-needed overview of the state of the art of hyperbranched polymers

The last two decades have seen a surge of interest in hyperbranched polymers due to their ease of synthesis on a large scale and their promising applications in diverse fields, from medicine to nanotechnology.

Written by leading scientists in academia and industry, this book provides for the first time a comprehensive overview of the topic, bringing together in one complete volume a wealth of information previously available only in articles scattered across the literature. Drawing on their work at the cutting edge of this dynamic area of research, the authors cover everything readers need to know about hyperbranched polymers when designing highly functional materials. Clear, thorough discussions include:

• How irregular branching affects polymer properties and their potential applications

• Important theoretical basics, plus a useful summary of characterization techniques

• How hyperbranched polymers compare with dendrimers as well as linear polymers

• Future trends in the synthesis and application of hyperbranched polymers

Geared to novices and experts alike, Hyperbranched Polymers is a must-have resource for anyone working in polymer architectures, polymer engineering, and functional materials. It is also useful for scientists in related fields who need a primer on the synthesis, theory, and applications of hyperbranched polymers.

Inhalt
Preface xiii Contributors xv

1. Promising Dendritic Materials: An Introduction to Hyperbranched Polymers 1

1.1 Importance of Branching 1

1.2 Polymer Architecture 1

1.3 Dendritic Polymers 3

1.4 Hyperbranched Polymers 5

1.5 Conclusions 21

1.6 References 22

2. Polycondensation of ABx Monomers 27

2.1 Introduction 27

2.2 Statistical Consideration 27

2.3 Polymerization of ABx -Type Monomers 30

2.4 References 74

3. Synthesis of Hyperbranched Polymers via Polymerization of Functionally Symmetric Monomer Pairs 79

3.1 Introduction 79

3.2 Theoretical Treatment of A2 + B3 Polymerization 81

3.3 Polymerization of Symmetrical Monomer Pairs 84

3.4 Conclusions 104

3.5 References 105

4. Synthesis of Hyperbranched Polymers via Polymerization of Asymmetric Monomer Pairs 107

4.1 Introduction 107

4.2 General Description of Polymerization of Asymmetric Monomer Pairs 108

4.3 Hyperbranched Polymers Prepared by Polymerization of Asymmetric Monomer Pairs 110

4.4 Conclusions 133

4.5 References 136

5. Self-Condensing Vinyl Polymerization 139

5.1 Introduction 139

5.2 Self-Condensing Vinyl Polymerization 140

5.3 Self-Condensing Vinyl Copolymerization (SCVCP) 150

5.4 Self-Condensing Processes in Presence of Initiators 162

5.5 SCVP of Macroinimers 167

5.6 Surface-Grafted Hyperbranched Polymers 169

5.7 References 172

6. Ring-Opening Multibranching Polymerization 175

6.1 Introduction 175

6.2 Classification of Ring-Opening Multibranching Polymerizations 178

6.3 Core-Containing Hyperbranched Polymers By Ring-Opening Multibranching Polymerization 195

6.4 Conclusion and Perspectives 198

6.5 References 200

7. Hyperbranched Copolymers Synthesized by Cocondensation and Radical Copolymerization 203

7.1 Introduction 203

7.2 Cocondensation of ABn and a Comonomer 204

7.3 Cocondensation of A2 + B2 + BB2 (or B B2) 214

7.4 SCVCP Via Charge-Transfer Complex Inimer 215

7.5 Free Radical Copolymerization of Multifunctional Vinyl Monomers 218

7.6 Conclusion 221

7.7 References 223

8. Convergent Synthesis of Hyperbranched Polymers and Related Approaches 227

8.1 Introduction 227

8.2 Convergent Control in Hyperbranched Synthesis 228

8.3 Results 231

8.4 Conclusions 247

8.5 References 247

9. Hyperbranched and Dendritic Polyolefins Prepared by Transition Metal Catalyzed Polymerization 251

9.1 Introduction 251

9.2 Results and Discussion 253

9.3 Summary and Perspective 266

9.4 References 269

10. Hyperbranched -Conjugated Polymers 273

10.1 Introduction 273

10.2 Scope 274

10.3 Hyperbranched Poly(Arylene)s 274

10.4 Hyperbranched Poly(Arylenevinylenes) 282

10.5 Hyperbranched Poly(Aryleneethynylenes) 289

10.6 Conclusion 295

10.7 References 297

11. Degree of Branching (DB) 301

11.1 Definition of the Degree of Branching (DB) 301

11.2 Determination of DB 305

11.3 The Value Range of DB 308

A11.4 Appendix 311

11.5 References 314

12. Influence of Branching Architecture on Polymer Properties 317

12.1 Introduction 317

12.2 Influence of Branching Architecture on Polymer Properties 318

12.3 Conclusions 329

12.4 References 329

13. Kinetic Theory of Hyperbranched Polymerization 333

13.1 Introduction 333 13.2 AB2-Type Polycondensation 335</p&gt...