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  2. Polystyrene - Wikipedia

    en.wikipedia.org/wiki/Polystyrene

    The crystal structure of isotactic polystyrene was reported by Giulio Natta. [20] ... The only commercially important form of polystyrene is atactic, ...

  3. Crystallization of polymers - Wikipedia

    en.wikipedia.org/wiki/Crystallization_of_polymers

    For example, highly linear polyethylene can form platelet-like single crystals with a thickness on the order 10–20 nm when crystallized from a dilute solution. The crystal shape can be more complex for other polymers, including hollow pyramids, spirals and multilayer dendritic structures. [2]

  4. Styrene - Wikipedia

    en.wikipedia.org/wiki/Styrene

    In 1865, the German chemist Emil Erlenmeyer found that styrene could form a dimer, [14] and in 1866 the French chemist Marcelin Berthelot stated that "metastyrol" was a polymer of styrene (i.e. polystyrene). [15] Meanwhile, other chemists had been investigating another component of storax, namely, cinnamic acid.

  5. Polystyrene sulfonate - Wikipedia

    en.wikipedia.org/wiki/Polystyrene_sulfonate

    Micrograph showing sodium polystyrene sulfonate crystals (purple – at top of the image) in the biopsy of a colonic mass. H&E stain.. Polystyrene sulfonate is usually supplied in either the sodium or calcium form.

  6. PEDOT:PSS - Wikipedia

    en.wikipedia.org/wiki/PEDOT:PSS

    Polystyrene sulfonate is a sulfonated polystyrene. Part of the sulfonyl groups are deprotonated and carry a negative charge. The other component poly(3,4-ethylenedioxythiophene) (PEDOT) is a conjugated polymer and carries positive charges and is based on polythiophene. Together the charged macromolecules form a macromolecular salt. [2]

  7. Searchers don’t expect to find Pennsylvania woman alive in ...

    www.aol.com/searchers-don-t-expect-pennsylvania...

    Pollard’s family called police at about 1 a.m. Tuesday to say she had not been seen since going out at about 5 p.m. Monday to search for Pepper, her cat.

  8. Styrene maleic anhydride - Wikipedia

    en.wikipedia.org/wiki/Styrene_maleic_anhydride

    In a typical combination of those two properties, SMA is available as a crystal clear granule that can be used in a wide variety of applications. SMA polymers with a high molecular weight are widely used in engineering plastic applications, normally in the impact modified and optional glass fibre filled variants.

  9. Hair Growth Oil Doesn't Really Work. Just Buy the Minoxidil.

    www.aol.com/hair-growth-oil-doesnt-really...

    Rosemary Oil. A very common oil included in natural hair growth products, studies have noted the efficacy of rosemary in promoting hair growth. In one study, results showed that rosemary oil may ...