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Published on: November 21, 2017
Zinc-Catalyzed Hydrosilylation Copolymerization of Aromatic Dialdehydes with Diphenylsilane
Chuanyang Li1,2, Xiufang Hua1,2, Zehuai Mou1
1State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun, 130022, China.
Abstract:
The hydrosilylation reaction of diphenylsilane and phthalaldehyde is catalyzed by heteroscorpionate zinc hydride complex LZnH (1, L = (Me Pz)2 CP(Ph)2 NPh, Me Pz = 3,5-dimethylpyrazolyl). Both terephthalaldehyde (tPAA) and isophthalaldehyde (iPAA) affords linear polymer; however, when PAA is used, a seven-membered cyclic silyl ether is formed. These products are characterized by 1 H and 13 C NMR spectra. Other properties of polymers are determined by gel permeation chromatography (GPC)-multiangle laser-light scattering, differential scanning calorimetry, and thermogravimetry.
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