Polymer and small molecule mechanochemistry: closer than ever

• José G. Hernández

Beilstein J. Org. Chem. 2022, 18, 1225–1235, doi:10.3762/bjoc.18.128

• it was not observed in sonication experiments. These observations inspired the synthesis and activation of mechanophores (maleimide–anthracene cycloadducts) in dendronized polymer-based materials such as 4 upon ball milling (Scheme 2). The differences observed in the activation of polymers such as 4

• -methylphenyl-9-fluorenyl) peroxide (BMPF)-containing poly(butyl methacrylate) 2, in a mixer mill. Mechanochemical activation of dendronized polymer-based compound 4 by ultrasonication and ball milling in a mixer mill. Comparative mechanochemical dissociation of the central C–C bond in TASN derivatives 6 and 8

Redox active dendronized polystyrenes equipped with peripheral triarylamines

• Toshiki Nokami,
• Naoki Musya,
• Tatsuya Morofuji,
• Keiji Takeda,
• Masahiro Takumi,
• Akihiro Shimizu and
• Jun-ichi Yoshida

Beilstein J. Org. Chem. 2014, 10, 3097–3103, doi:10.3762/bjoc.10.326

• polystyrene equipped with peripheral triarylamines, which exhibited two sets of reversible redox peaks in the cyclic voltammetry curves. Keywords: carbocation; cross-coupling; dendrimer; dendronized polymer; redox; Introduction Assembling small functional molecules using dendrimers [1] and dendronized

• (Mn = 9,300, PDI = 1.02). Using GPC analysis to estimate the molecular weight of the dendronized polymer was not appropriate, because both the Mn and Mw values of the obtained dendronized polystyrene 8b were only twice that of the starting polystyrene 7b (Table 1). SEC–MALLS analysis indicated that 6