Citation:
HUANG Xueliang, ZHU Fanghua, YANG Junxiao, ZHANG Lin. Synthesis and Properties of Diethyl Tetramethyl Disiloxane Bisbenzocyclobutene and Its Polymer[J]. Chinese Journal of Applied Chemistry,
;2011, 28(6): 640-644.
doi:
10.3724/SP.J.1095.2011.00425
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Hydrosilylation reaction of 4-vinylbenzocyclobutene(4-VBCB) with 1,1,3,3-tetramethyl-1,3-dihydro disiloxane(TMHS) was employed to afford the monomer of diethyl tetramethyl disiloxanebisbenzocyclobutene(DES-bis-BCB).The structures of DES-bis-BCB and the prepolymer prepared from DESbis-BCB by thermal isomerization ring opening polymerization reaction were characterized and analyzed.The surface morphology and thermal stability of the films were investigated by atomic force microscopy(AFM) and thermogravimetric analysis(TGA),respectively.The results showed that the root-mean square(RMS) roughness was 0.53 nm,and the starting mass loss temperature was about 390℃.It indicated that DES-bisBCB exhibited good film-forming property and excellent thermal stability.
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