English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We present a straightforward method for the preparation of a novel donor–acceptor block copolymer based on an acceptor block with pendant phenyl-C71-butyric methyl ester (PC71BM) and a regioregular poly(3-hexylthiophene) (P3HT) as a donor. First, a hydroxyl-functionalized polystyrene copolymer with an azide end group was synthesized via nitroxide-mediated radical polymerization (NMRP) and was coupled with alkyne-terminated P3HT using copper(I) catalyzed azide–alkyne cycloaddition (CuAAC). The grafting reaction of phenyl-C71-butyric acid (PC71BA) to the hydroxyl groups of the polystyrene precursor was optimized to yield near-quantitative conversion which is demonstrated for a PC71BM-grafted acceptor copolymer in detail using MALDI-TOF mass spectrometry, thermogravimetric analysis (TGA) and 1H-NMR spectroscopy. Owing to the incorporation of C70, the donor–acceptor block copolymer exhibits enhanced absorption in the entire visible range of 300 to 600 nm. A detailed structural analysis of the block copolymer based on small-angle X-ray scattering in transmission (SAXS) and in grazing incidence geometry (GISAXS) as well as scanning electron microscopy (SEM) gave clear evidence for the formation of a periodic nanostructure of 37 nm in bulk and in thin films.

Donor–acceptor block copolymers carrying pendant PC71BM fullerenes with an ordered nanoscale morphology

Donor–acceptor block copolymers carrying pendant PC₇₁BM fullerenes with an ordered nanoscale morphology