Fullerenes decorated with poly(vinylidene fluoride)
Fullerenes decorated with poly(vinylidene fluoride)
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DOI：
10.1021/ma102754c
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发表时间：
2011-03
期刊：
影响因子：
5.5
通讯作者：
R. Vukićević;S. Beuermann
中科院分区：
文献类型：
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作者：
R. Vukićević;S. Beuermann
采用三步法合成了聚偏氟乙烯（PVDF）修饰的富勒烯：在超临界CO2中，以C6 F12 I2为链转移剂，通过碘转移聚合法合成了端碘聚偏氟乙烯（PVDF），并将其转化为端叠氮聚合物。最后，叠氮化物封端的PVDF链在160 °C微波辐射下在1.5小时内连接到富勒烯核。采用NMR、FT-IR、UV/维斯、GPC、元素分析、DSC等手段对材料进行了表征。平均而言，4 - 5个PVDF链连接到一个C60部分。红外光谱和差示扫描量热分析表明，聚合物端基对材料的结晶度有很大的影响。对于具有叠氮端基的PVDF和连接到富勒烯的PVDF，β多晶型物的分数占主导地位，而α多晶型物几乎不存在。
Fullerenes decorated with poly(vinylidene fluoride) (PVDF) were synthesized in a three-step procedure: Iodine transfer polymerization of vinylidene fluoride with C6F12I2 as the chain transfer agent was carried out in supercritical carbon dioxide to synthesize iodine-terminated PVDF, which was subsequently transformed to azide-terminated polymer. Finally, azide-terminated PVDF chains were attached to a fullerene core under microwave irradiation at 160 °C in 1.5 h. The materials were characterized by NMR, FT-IR, UV/vis, GPC, elemental analysis, and DSC. On average, 4−5 PVDF chains are attached to one C60 moiety. FT-IR spectra and DSC measurements indicate that the polymer end groups strongly affect the crystallinity of the material. For PVDF with azide end groups and PVDF attached to fullerenes the fraction of the β polymorph is dominant while α polymorphs are almost absent.