Single molecule magnets physical properties

Most commercial polymers are substantially linear. They have a single chain of mers that forms the backbone of the molecule. Side chains can occur and can have a major effect on physical properties. An elemental analysis of any polyolefin [e.g., polyethylene, polypropylene, poly(l-butene)] gives the same empirical formula, CH2, and it is only the nature of the side chains that distinguishes between the polyolefins. Polypropylene has methyl side chains on every other carbon atom along the backbone. Side chains at random locations are called branches. Branching and other polymer structures can be deduced using analytical techniques such as nuclear magnetic resonance (NMR). 

A microparticle is defined as a physical object whose wave properties can be registered. This class includes elementary particles, atomic nuclei, atoms (atomic ions), molecules (molecular ions) and more complex assemblies (like clusters and macromolecules). Some properties of microparticles belong to the universal physical constants (energy, mass, linear momentum, angular momentum, electric charge, magnetic moment) some, on the contrary, are exclusively specific for microparticles (spin, parity, life-time). Macroscopic state properties (such as temperature, pressure, volume, entropy, etc.) are irrelevant for a single microparticle. 

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