Synthesis and analysis of photorespo...
Galgano, Joshua J.

 

  • Synthesis and analysis of photoresponsive side chain dendritic polyesters.
  • 紀錄類型: 書目-語言資料,印刷品 : Monograph/item
    書名/作者: Synthesis and analysis of photoresponsive side chain dendritic polyesters.
    作者: Galgano, Joshua J.
    面頁冊數: 104 p.
    附註: Source: Dissertation Abstracts International, Volume: 70-10, Section: B, page: 6238.
    Contained By: Dissertation Abstracts International70-10B.
    標題: Chemistry, Polymer.
    標題: Engineering, Chemical.
    標題: Engineering, Materials Science.
    ISBN: 9781109458220
    摘要、提要註: The incorporation of a photoresponsive "smart" materials that can reversibly change shape or properties by simple photoirradiation, allow for components that are lighter and capable of responding faster than current adaptive materials. The azobenzene molecule observes an effective size differential when exposed to UV light on the order of ∼3.5 A as it converts from a stable trans isomer to an excited cis isomer. The isomerization is photoreversible when attenuated with visible light. Incorporating the azobenzene moiety into an extended polymer chain has resulted in such problems as lack of free volume available for the azobenzene to efficiently isomerize, increase in polymer chain rigidity, and the propensity for the azobenzene moieties to aggregate when forced into proximity with one another. Banthia et al. developed and incorporated a PAMAM dendritic wedge diol with a diacyl chloride azobenzene to form side chain dendritic polyesters (SCDPE).
    電子資源: http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3383133
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