Photoinduced Fusion of Micro‐Vesicles Self‐Assembled from Azobenzene‐Containing Amphiphilic Diblock Copolymers
Photoinduced Fusion of Micro‐Vesicles Self‐Assembled from Azobenzene‐Containing Amphiphilic Diblock Copolymers
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DOI：
10.1002/marc.200700077
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发表时间：
2007-06
影响因子：
4.6
通讯作者：
Wei‐Nien Su;Yanhua Luo;Qing Yan;Si Wu;Kuo Han;Qijin Zhang;Yongqiang Gu;Yin-mei Li
中科院分区：
文献类型：
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作者：
Wei‐Nien Su;Yanhua Luo;Qing Yan;Si Wu;Kuo Han;Qijin Zhang;Yongqiang Gu;Yin-mei Li
通过连续可逆加成断裂链转移（RAFT）聚合合成了聚（N-异丙基丙烯酰胺）嵌段聚{6-[4-(4-甲基苯基-偶氮)苯氧基]丙烯酸己酯}（PNIPAM-b-PAzoM）。在H 2 O/THF 混合物中，两亲性PNIPAM-b-PAzoM 自组装成巨大的微泡。在365 nm的光照射下，在光学显微镜下直接观察囊泡的融合。提出了实时融合过程，并初步推导了由于囊泡中偶氮苯单元的光诱导反式异构化为顺式异构化的扰动。
Poly(N-isopropylacrylamide)-block-poly{6-[4-(4-methylphenyl-azo) phenoxy] hexylacrylate} (PNIPAM-b-PAzoM) was synthesized by successive reversible addition-fragmentation chain transfer (RAFT) polymerization. In H 2 O/THF mixture, amphiphilic PNIPAM-b-PAzoM self-assembles into giant micro-vesicles. Upon irradiation of light at 365 nm, fusion of the vesicles was observed directly under an optical microscope. The real-time fusion process is presented and the derivation is preliminarily due to the perturbation by the photoinduced trans-to-cis isomerization of azobenzene units in the vesicles.