Branching (polymer chemistry) - Wikipedia
网页In polymer chemistry, branching is the regular or irregular attachment of side chains to a polymer 's backbone chain. It occurs by the replacement of a substituent (e.g. a hydrogen atom) on a monomer subunit by another covalently-bonded chain of that polymer; or, in the case of a graft copolymer, by a chain of another type.
The Beauty of Branching in Polymer Science | Macromolecules
网页2020年5月12日 · Branching can range from hard to detect side reactions during the growth of linear polymers to perfectly branched, fractal-like dendrimers. As synthetic materials, dendrimers come closest to resembling proteins in their three-dimensional structure and discrete molecular weight.
Branched Polymers: Synthesis and Application | Macromolecules
网页2023年12月1日 · Branched polymers have aroused great interest due to their less chain entanglement, high concentration of chain terminals, good solubility, and low viscosity in melts and solutions. In this Perspective, we highlight various synthesis strategies for branched polymers with different structures and discuss their applications in …
Branched Polymer - an overview | ScienceDirect Topics
网页Branched polymers are defined as having secondary polymer chains linked to a primary backbone, resulting in a variety of polymer architectures such as star, H-shaped, pom-pom, and comb-shaped polymers.
PLA architectures: the role of branching - Polymer Chemistry …
网页Branching is introduced in PLA to obtain more interesting rheological and mechanical properties, such as a lower viscosity or an increase of the polymer strength. This is done by varying the molecular architecture to star-shaped, comb-shaped, dendritic/hyperbranched, H-shaped, long-chain branched or dumbbell-shaped PLA ( Table 2 ).
Influence of branching architecture on polymer properties
网页2011年7月29日 · As the newly emerging polymer architecture following the linear, branched, and crosslinking polymers, HBPs have attracted more and more attention in recent year. Herein, we have summarized the structure-property relationship of HBPs.
Selective branch formation in ethylene polymerization to ... - Nature
网页2022年2月7日 · This work provides creative perspectives for chain walking polymerization and beyond, particularly shows how to generate, control, analyze, and predict branch in polymer synthesis.
Branched polyesters: recent advances in synthesis and performance
网页2005年5月1日 · This review describes recent efforts in the synthesis of statistically and tailored branched systems, and performance advantages compared to linear counterparts. In particular, an emphasis is placed on long-chain branching, where the branches are sufficiently long enough to form entanglements.
Topology-transformable polymers: linear–branched polymer …
网页2017年10月25日 · Here, we discuss the synthesis and properties of M2R-based topology-transformable polymer systems as stimuli-responsive polymer systems, mainly focusing on linear–branched topology ...
Hyperbranched polymer architectures: From Flory's AB(f-1 ...
网页2020年12月21日 · Knowledge of the structure-property relationship resulted in precise tailoring of the branching-dependent properties, that set dendritic polymers apart from linear structures, i.e. the rather compact structure, high number of functional groups, low crystallinity and low viscosity both in solution and melt.
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