block copolymer


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Related to block copolymer: random copolymer, Heteropolymer

block copolymer

[′bläk kō′päl·ə·mər]
(organic chemistry)
A copolymer in which the like monomer units occur in relatively long alternate sequences on a chain. Also known as block polymer.
References in periodicals archive ?
These particles can take the form of elastomers, nanosilicas, block copolymers, or rigid thermoplastics.
The report "Styrenic Block Copolymer (SBCs) Market Analysis By Product (SBS, SIS, HSBC), By Application (Paving and Roofing, Footwear, Advanced Materials, Adhesives, Sealants, Coatings) And Segment Forecasts To 2020," is available now to Grand View Research customers.
NYSE: KRA) is a leading global producer of engineered polymers and styrenic block copolymers (SBCs), a family of products whose chemistry we pioneered fifty years ago.
The capped ends become seed micelles to which new block copolymers can be added, but only to one end.
A poly(2-vinyl pyridine)-b-(ethylene oxide) block copolymer with number average molecular weight, [M.
These small molecules can be stimulated by light (PDP) or heat (OPAP) to sever their connection to the surface of a block copolymer and be repositioned to another location along the polymeric chain.
He has developed an approach that involves mixing concentrated hydrochloric acid with titanium ethoxide, ethanol, and Pluronic[R] P123 (a block copolymer surfactant manufactured by BASF) to create a mesoporous titania film (the "meso-" prefix refers to pores of 2-50 nanometers in diameter).
The results of this work are published in a paper "Measuring Local Optical Properties: Near-Field Polarimetry of Photonic Block Copolymer Morphology," by M.
Nonetheless, chemists can force them together so the substances assemble themselves into a so-called block copolymer, in which the two materials are inextricably linked (SN: 9/3/88, p.
com/research/vwwhmd/styrenebutadiene) has announced the addition of the "Styrene-Butadiene-Styrene (SBS) Block Copolymer - Global Business Strategic Report" report to their offering.
Patent 8,491,965 (July 23, 2013), "Method of Controlling Orientation of Domains in Block Copolymer Films," Joy Cheng, Ho-Cheol Kim, Daniel P.
has been granted a patent for a hot melt adhesive comprised of a blend of 5%-40% weight of a styrene-butadiene-styrene block copolyme; the styrene-butadiene-styrene block copolymer is a substantially linear styrene-butaliene-styrene block copolymer having a styrene content of 38%-50% by weight and 0% diblock, and a melt flow index of 3 g/10 min to 11 g/10 min at 190[degrees] C with a 5 kg weight, and a polydispersity of 1.