atactic


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Related to atactic: syndiotactic polymer

atactic

[ā′tak·tik]
(organic chemistry)
Of the configuration for a polymer, having the opposite steric configurations for the carbon atoms of the polymer chain occur in equal frequency and more or less at random.
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References in periodicals archive ?
Mattice, "Molecular Origin of Demixing, Prior to Crystallization, of Atactic Polypropylene/Isotactic Polypropylene Blends upon Cooling from the Melt," J.
The interfacial agent used is a succinic anhydride-grafted atactic polypropylene (aPP-SA/SA) with two types of grafts: succinic bridges and side grafted succinic anhydride groups (Fig.
Mulhaupt, "Determination of plateau moduli and entanglement molecular weights of isotactic, syndiotactic and atactic polypropylenes synthesized with metallocene catalysts," Macromolecules 1998.
Scientists have found this tendency can be overcome by adding atactic polypropylene (APP) or styrene butadiene styrene (SBS) to the asphalt mix.
Tenders are invited for Providing APP Atactic Polypropylene Polymer water Proofing sheet roofing to arrest leakage due to rain water in CMX substation room for 1010KVA EA and Lift machine room at NTB Bengaluru.
The remainder of the material (if any) is atactic polymer.
Conversely, the diminution in the amount of the triads leads to a large amount of atactic insertion of the propylene monomer.
Resins made with this catalyst have high purity, very little atactic content, low acidity, and low chloride levels.
From Industrial Polymerisation Wastes to High Valued Material: Interfacial Agents for Polymer Blends and Composites based on Chemically Modified Atactic Polypropylenes 3.
Tenders are invited for Roof treatment work with app atactic poly propylene water proofing membrane at hostel building at b.
In immiscible blends of isotactic polypropylene and atactic polystyrene (iPP/aPS), the glass transition of aPS was reported to vary with iPP content, due to interface interactions between the two polymers [44, 45].