Hyperbranched polyethylenes by chain walking polymerization: synthesis, properties, functionalization, and applications
- 31 October 2011
- journal article
- review article
- Published by Royal Society of Chemistry (RSC) in Polymer Chemistry
- Vol. 3 (2), 286-301
- https://doi.org/10.1039/c1py00368b
Abstract
Structurally different from existing polyethylene grades, hyperbranched polyethylenes (HBPEs) synthesized by Pd–diimine-catalyzed chain walking polymerization represent a novel class of polyethylene materials with unprecedented chain architectures and unique physical properties. A large number of research investigations have been carried out in the area in the past decade, and have led to the successful synthesis of a broad range HBPEs of various controlled chain topologies, molecular weights, and functionalities by tuning polymerization parameters and/or catalyst structures. Meanwhile, some new specialty applications of these materials have also been demonstrated in various fields ranging from lubricant additives to polymer building blocks to nanoencapsulation, with some interesting performance properties discovered. This review aims to summarize the developments in this area.Keywords
This publication has 100 references indexed in Scilit:
- One-step synthesis of hyperbranched polyethylene macroinitiator and its block copolymers with methyl methacrylate or styrene via ATRPJournal of Polymer Science Part A: Polymer Chemistry, 2010
- One-Pot Synthesis of Hyperbranched Polyethylenes Tethered with Polymerizable Methacryloyl Groups via Selective Ethylene Copolymerization with Heterobifunctional Comonomers by Chain Walking Pd−Diimine CatalysisMacromolecules, 2008
- Homogeneous polyhedral oligomeric silsesquioxane (POSS)-supported Pd–diimine complex and synthesis of polyethylenes end-tethered with a POSS nanoparticle via ethylene “living” polymerizationChemical Communications, 2008
- Chain Walking Ethylene Copolymerization with an ATRP Inimer for One‐Pot Synthesis of Hyperbranched Polyethylenes Tethered with ATRP Initiating SitesMacromolecular Rapid Communications, 2007
- Topology-Engineered Hyperbranched High-Molecular-Weight Polyethylenes as Lubricant Viscosity-Index Improvers of High Shear StabilityIndustrial & Engineering Chemistry Research, 2007
- Effect of Chain Straightening on Plateau Modulus and Entanglement Molecular Weight of Ni‐diimine Poly(1‐hexene)sMacromolecular Rapid Communications, 2006
- Melt Rheological Properties of Branched Polyethylenes Produced with Pd‐ and Ni–Diimine CatalystsMacromolecular Chemistry and Physics, 2004
- Long Chain Branching in Ethylene/Propylene Solution Polymerization Using Constrained Geometry CatalystMacromolecules, 2000
- Monte-Carlo simulation of branching distribution in Ni-diimine catalyzed polyethyleneAIChE Journal, 2000
- Molecular Size Distribution in Three Dimensional Polymers. VI. Branched Polymers Containing A—R—Bf-1 Type UnitsJournal of the American Chemical Society, 1952