Hierarchical Self‐Assembly of Double‐Crystalline Poly(ferrocenyldimethylsilane)‐block‐poly(2‐iso‐propyl‐2‐oxazoline) (PFDMS‐b‐PiPrOx) Block Copolymers. Issue 18 (14th July 2015)

• Record Type: Journal Article
• Authors: Rudolph, Tobias; Nunns, Adam; Stumpf, Steffi; Pietsch, Christian; Schacher, Felix H.
• Is Part Of: Macromolecular rapid communications. Volume 36:Issue 18(2015:Sep.)
• Page Start: 1651
• Page End: 1657
• Publication Date: 2015-07-14
• Subjects: Macromolecules -- Periodicals; Polymers -- Periodicals; Chemistry -- Periodicals; 547.705
• DOI: 10.1002/marc.201500245
• Languages: English
• ISSNs: 1022-1336

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>The step‐wise solution self‐assembly of double crystalline organometallic poly(ferrocenyldimethylsilane)‐<italic>block</italic>‐poly(2‐<italic>iso</italic>‐propyl‐2‐oxazoline) (PFDMS‐<italic>b</italic>‐P<italic>i</italic>PrO<italic>x</italic>) diblock copolymers is demonstrated. Two block copolymers are obtained by copper‐catalyzed azide‐alkyne cycloaddition (CuAAC), featuring PFDMS/P<italic>i</italic>PrOx weight fractions of 46/54 (PFDMS₃₀‐<italic>b</italic>‐P<italic>i</italic>PrOx₇₅) and 30/70 (PFDMS₃₀‐<italic>b</italic>‐P<italic>i</italic>PrOx₁₅₅). Nonsolvent induced crystallization of PFDMS in acetone leads in both cases to cylindrical micelles with a PFDMS core. Afterward, the structures are transferred into water for sequential temperature‐induced crystallization of the P<italic>i</italic>PrOx corona, leading to hierarchical double crystalline superstructures, which are investigated using scanning electron microscopy, wide angle X‐ray scattering, and differential scanning calorimetry. <graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgj2n1hs34h" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></p> </abstract>