Dissertation
Dissertation > Mathematical sciences and chemical > Chemistry > Organic Chemistry > Heterocyclic compounds

Studies on Synthesis and Gel Performance of Novel Spiropyran Compounds

Author CaoJianLei
Tutor YuHaiTao
School Hebei Normal
Course Organic Chemistry
Keywords Photochromic materials Spiropyran Gel Photochromic organic gel
CLC O626
Type Master's thesis
Year 2011
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Photochromic means is that certain compounds in the certain wavelength and intensity of the optical effect of the molecular structure will change, resulting in its light absorption peak i.e. a change in the color , and this change is usually reversible . Humans find the photochromic phenomenon has been 100 years of history . Photochromic material has potential applications in data storage , display materials and optical computing materials such as optical and optoelectronic field , and therefore subject to people's attention . Spiropyran class compounds is the study of the earlier one of the photochromic material can be synthesized by modification of the spiropyran compounds functional photochromic material . This thesis is divided into the following three parts: the first part is the introduction of light photochromic material spiropyran compound has the advantages of simple preparation , good compatibility with organic solvents , high luminous efficiency, good fatigue resistance widespread concern by the people . Introduced spiropyran compounds , spirooxazine the class compound synthesis , principle , photochromic influencing factors . The second part is the synthesis method and characterization of the synthesis of novel compounds of the spiropyran . This paper first synthesized the SP1-SP5 simple spiropyran compounds based on synthetic SPA , SPB , SPC, SPD , SPE , and then to SP6 . The target compounds synthesized in this paper is yet to see the new compounds reported in the literature . Several compounds using IR, 1H NMR detection method to determine the structure of the compound . The third part of the research on the nature of the synthesis spiropyran compounds . This paper design and synthesis of novel spiropyran compounds SP1 , SP3 , SP4, SP5 , SPA , SPB , SPC , SPD and SPE , photochromic , pH discoloration , and a more comprehensive and in-depth study of the metal ion , the polarity of the solvent the light induced discoloration and fading speed ; the gel properties of the test article also on the synthesis of new compounds of the spiropyran , found modified three long chain amide compound of the spiropyran class compound ( SPE ) has good gelling properties , and made ??of an organic gel having photochromic properties . SPE gel properties do in-depth inquiry . The SP6 with three long-chain amide can form a two-component gel can also do in-depth research them , and by scanning electron microscopy , transmission electron microscopy the morphology of the gel state description .

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