Tailor-Made Functional Polyolefins of Complex Architectures: Recent Advances, Applications, and Prospects

Abstract

Polyolefins play a crucial role in the polymer industry because of their low-cost monomers and well-established production processes. Recent years have witnessed tremendous progress in direct and tandem copolymerization strategies that provide an opportunity of developing polyolefins bearing polar groups with distinctive architectures and properties. In this perspective, we first highlight new routes for the proficient synthesis of tailor-made functional polyolefins and briefly discuss their designing tactics. Then, we attempt to categorize these, recently appeared in the literature, innovative functional polyolefins on the basis of their applications. The prospected future applications of polar olefin copolymers include biomedical materials, catalysts, energy storage devices, and conductive polymers, which open up new arenas and paradigms for academic research and industrial products development. Critical issues concerning intelligent functional polyolefins and green chemistry are discussed, too.

Design, Synthesis and Actual Applications of the Polymers Containing Acidic P–OH Fragments: Part 1. Polyphosphodiesters

“…In our review, we tried to show all the diversity of the synthetic approaches to polyphosphodiesters and great potential of their applications. In our humble opinion, the consideration of polyphosphodiesters as a particular case of biodegradable polyesters [ 3 , 4 , 12 , 15 ] or tailor-made functional polyolefins [ 18 , 135 ] artificially and unjustifiably limit the assessment of these type of materials. The fundamental difference of the polyphosphodiesters from biodegradable polyesters are lower hydrolytic stability, higher biocompatibility, ability to deliver drugs with basic fragments, and bone mineral affinity.…”

Chemical Modification of Oxidized Polyethylene Enables Access to Functional Polyethylenes with Greater Reuse

“…These functional polyolefins possess enhanced properties that enable them to be more compatible with polar media. 8,9 Due to this increased compatibility, functional polyolefins could require fewer additives to generate consumer materials, thereby reducing the barriers to recovery and reuse. 6,10 Functional polyolefins can be made by copolymerization of an α-olefin with a polar vinyl comonomer; however, catalytic copolymerizations are often plagued by poisoning of the catalysts by the polar functional group, and radical-initiated copolymerizations produce polymers with high degrees of branching.…”

“…To address the shortcomings of polyethylene, functional polyolefins have been synthesized. These functional polyolefins possess enhanced properties that enable them to be more compatible with polar media. , Due to this increased compatibility, functional polyolefins could require fewer additives to generate consumer materials, thereby reducing the barriers to recovery and reuse. , …”

Comb Polybutadiene with Long Polystyrene Side Chains: A Solution for Tunable Flowability and Enhancing Dielectric Properties in High-Frequency Printed Board Adhesive Films

“…These resins exhibited minimal polarity while demonstrating excellent adhesion to various substrates. 10 Composed solely of carbon and hydrogen, their molecular structure possessed low polarization and weak polarity, and even after undergoing the intricate process of cross-linking and curing, their dielectric properties remained stable, making them ideal as interlayer adhesive membrane materials. 11,12 Commercially available liquid PB resins, such as the RO4000@ and Ricon@ series, are already present in the market.…”

“…However, conventional adhesives such as polyimide, epoxy resin, and benzoxazine resin contained a substantial number of polar bonds (e.g., C–O, O–H, C–N) and polar groups (e.g., amide and hydroxyl groups), failing to meet the essential dielectric requirements for high-frequency communication PCBs. − Consequently, our attention had turned to the intriguing realm of thermosetting liquid high vinyl polybutadiene (PB) resins. These resins exhibited minimal polarity while demonstrating excellent adhesion to various substrates . Composed solely of carbon and hydrogen, their molecular structure possessed low polarization and weak polarity, and even after undergoing the intricate process of cross-linking and curing, their dielectric properties remained stable, making them ideal as interlayer adhesive membrane materials. , Commercially available liquid PB resins, such as the RO4000@ and Ricon@ series, are already present in the market.…”