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Related to atactic: syndiotactic polymer


Of or relating to a polymer lacking structural regularity.

[a- + Greek taktikos, of order; see tactics.]


1. (Chemistry) chem (of a polymer) having random sequence of the stereochemical arrangement of groups on carbon atoms in the chain; not stereospecific
2. (Pathology) pathol relating to or displaying ataxia
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Adj.1.atactic - lacking motor coordination; marked or caused by ataxia
References in periodicals archive ?
studied the oxo-degradability of expanded atactic polystyrene (PS) that are formulated with cobalt and manganese based prooxidant additives [5].
The most poignant example for how structural configuration of these materials affected the LCST is poly(N-isopropyl acrylamide) (PNIPAM): a gradual decrease is recorded with increasing the isotacticity, and, for an isotactic (mm) triad, the insolubility in water appears to be over 72%, although the atactic (mr) PNIPAM is one of the representative water-soluble polymers [17].
Triphenylmethyl methacrylate (TrMA) is a unique monomer that forms an isotactic polymer, PTrMA, even by a radical process, (11) which usually yields atactic or syndiotactic polymers.
atactic propylene/APP, styrene butadiene styrene/SBS, styrene isoprene styrene/ SIS, etc.
Classification of volatile products evolved from the temperature-programmed co-pyrolysis of Turkish oil shales with atactic polypropylene (APP).
KGaA has been awarded a patent for an article comprised of at least one substrate and a curable coating agent comprised of 30%-80% weight of an atactic polyalpha-olefin, which contains at least two alkoxysilane groups; 5%-40% weight of a radiation-activatable reaction product of (meth)acrylic acid with alcohols or with NCO-group containing compound; 0.
Use of manual stimulation for collection of semen from an atactic stallion unable to mount.
As an example, a selected amount of isotactic polypropylene is blended with a selected amount of atactic polypropylene to prepare an adhesive composition having one or more performance properties (e.
They cover how developments in polymer technology are driven by the need for sustainability, a medium-voltage switchgear mechanism that is insensitive to its environment, interfacial agents for polymer blends and composites based on chemically modified atactic polypropylenes, an energy efficiency index for plastic processing machines, a comparative analysis of the carbon footprint of wood and plastic-lumber railway sleepers in Brazil and Germany, perfect sorting solutions for packaging recycling, a British household plastic packaging recycling survey, and experience and perspectives in polyvinyl chloride (PVC) sustainable development.
Examples included atactic polystyrene and polylactic acid filled with montmorillonite particles.
Investigation of the relationships between the chain organization and rheological properties of atactic poly(vinyl alcohol) hydrogels.