polychemistry

Polychemistry is a field of study focused on polymers and other macromolecular systems, including their synthesis, structure, properties, and applications. The term is used in various ways, sometimes as a broad umbrella for polymer chemistry and related disciplines such as macromolecular chemistry, supramolecular chemistry, and combinatorial approaches to polymer development. It emphasizes the chemical principles that govern the formation and behavior of large, repeatedly connected units and their networks.

The scope of polychemistry includes polymerization mechanisms (free-radical, condensation, ring-opening, living/controlled polymerizations), polymer architectures (linear, branched, crosslinked, dendritic), and copolymer design. It covers synthesis and functionalization of polymers, biopolymers, and conjugated or smart polymers responsive to stimuli. Characterization relies on techniques such as nuclear magnetic resonance, infrared spectroscopy, size-exclusion chromatography, differential scanning calorimetry, thermogravimetric analysis, and rheology, often complemented by computational modeling to predict properties and processability.

Subfields commonly associated with polychemistry include polymer physics, biomacromolecules, polymer rheology, and materials science. Applications span packaging, coatings, plastics, elastomers, electronics, biomedicine, drug delivery, and energy storage. The field also addresses sustainability challenges, including recyclability, degradability, and the development of renewable or bio-based polymers.

Historically, polychemistry developed from early polymer science in the 20th century, with milestones in polymerization techniques and macromolecular design. Today, it remains an interdisciplinary, rapidly evolving area linked to chemistry, materials science, and engineering.