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Volumn 42, Issue 12, 2009, Pages 4224-4229

Conformation of single homopolymer chain in microphase-separated block copolymer monolayer studied by scanning near-field optical microscopy

Author keywords

[No Author keywords available]

Indexed keywords

DIFFRACTION LIMIT OF LIGHT; FLUORESCENCE INTENSITIES; HIGH SPATIAL RESOLUTION; HOMOPOLYMER CHAINS; MICRO-DOMAINS; MICRO-PHASE; OCTADECYL; PHASE-SEPARATED STRUCTURES; POLY (ISOBUTYL METHACRYLATE); SCANNING NEAR-FIELD OPTICAL MICROSCOPY; SINGLE-POLY;

EID: 67649188746     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma900351r     Document Type: Article
Times cited : (15)

References (39)
  • 37
    • 67649176811 scopus 로고    scopus 로고
    • We blended the PiBMA-b-PODMA with different trace amounts of the PiBMA:PDI and measured by SNOM for each sample. The FL images show that all fluorescent spots are homogeneously distributed throughout the monolayer. For each FL image, we calculated the number density of the fluorescence spots. The number density of the fluorescent spots is in good agreement with the number density of the PiBMA:PDI chains in the PiBMA-b-PODMA, based on the molar ratio. This indicates that homo-PiBMA chains did not aggregate and one fluorescent spot in the FL images corresponds to a single PiBMA:PDI chain dispersed in the PiBMA-b-PODMA
    • We blended the PiBMA-b-PODMA with different trace amounts of the PiBMA:PDI and measured by SNOM for each sample. The FL images show that all fluorescent spots are homogeneously distributed throughout the monolayer. For each FL image, we calculated the number density of the fluorescence spots. The number density of the fluorescent spots is in good agreement with the number density of the PiBMA:PDI chains in the PiBMA-b-PODMA, based on the molar ratio. This indicates that homo-PiBMA chains did not aggregate and one fluorescent spot in the FL images corresponds to a single PiBMA:PDI chain dispersed in the PiBMA-b-PODMA.
  • 38
    • 67649173574 scopus 로고    scopus 로고
    • We estimated Rg of the homo-PiBMA chains dispersed in the PiBMA monolayer matrix by the same method mentioned above. The DPn of the matrix PiBMA is 2200, which is almost the same as the DPn of the PiBMA block of the PiBMA-b-PODMA
    • n of the PiBMA block of the PiBMA-b-PODMA.
  • 39
    • 67649150264 scopus 로고    scopus 로고
    • We also estimated the orientational angle of the homo-PiBMA chains in the neat PiBMA monolayer. We followed the same method mentioned above. FL images show that the homo-PiBMA chains have no preferred orientation in the PiBMA monolayer matrix
    • We also estimated the orientational angle of the homo-PiBMA chains in the neat PiBMA monolayer. We followed the same method mentioned above. FL images show that the homo-PiBMA chains have no preferred orientation in the PiBMA monolayer matrix.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.