含偶氮苯基侧基聚硅氧烷的合成及光致变色性

含偶氮苯基侧基聚硅氧烷的合成及光致变色性张其震，张静智，王艳（山东大学化学系济南２５０１００）（山东大学环境科学中心济南２５０１００）关键词聚硅氧烷，光致变色，光异构化，量子产率将光致变色性和液晶性化合物结合可得到新的多功能高分子材料，Ｒｉｎｇｅｄｏ...

SYNTHESIS AND PHOTOCHROMISM OF POLYSILOXANE CONTAINING AZOBENZENE SIDE GROUPS

New monomer,4-undecylen-10]-amidoazobenzene was prepared.New polymer,poly(methyl,undecanoic amidoazobenzene-siloxane)was synthesized by hydrosilation reaction of poly(methylhydrosiloxane)with monomer.The chemical structure of monomer and polymer was confirmed by IR and 1H-NMR analysis.The linear dependence of Ar on time in photoisomerization reaction of azobenzene groups of polymer and monomer in benzene solution are in accordence with a first kinetics.km and kp are3.011×10-7·s-1 and 4.350×10-8·s-1,respectively.There results indicate that the macromolecular structure does not sighificantly affect the photoisomerization rate,therefore the polymer shows both good mechnical properties stemming from polysiloxane and photochromism stemming from monomer.The quantUm yield of photoisomerization of monomer in benzene solution is 0.37.