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Volumn 16, Issue 21, 2004, Pages 3982-3984

Crack healing in polymeric materials via photochemical [2+2] cycloaddition

Author keywords

[No Author keywords available]

Indexed keywords

BUTANE; CRACK INITIATION; CROSSLINKING; MONOMERS; PHOTOCHEMICAL REACTIONS;

EID: 6044223548     PISSN: 08974756     EISSN: None     Source Type: Journal    
DOI: 10.1021/cm049394+     Document Type: Article
Times cited : (411)

References (29)
  • 10
    • 6044225303 scopus 로고
    • Kelly, J. M., McArdle, C. B., Maunder, M. J. F., Eds.; Royal Society of Chemistry: London
    • (b) Decker, C. In Photochemistry and Polymeric Systems; Kelly, J. M., McArdle, C. B., Maunder, M. J. F., Eds.; Royal Society of Chemistry: London, 1993; p 32.
    • (1993) Photochemistry and Polymeric Systems , pp. 32
    • Decker, C.1
  • 11
    • 0004080382 scopus 로고    scopus 로고
    • Salamone, J. C., Ed.; CRC Press: Boca Raton, FL
    • (a) Paczkowski, J. In Polymeric Materials Encyclopedia; Salamone, J. C., Ed.; CRC Press: Boca Raton, FL, 1996; p 5142.
    • (1996) Polymeric Materials Encyclopedia , pp. 5142
    • Paczkowski, J.1
  • 15
    • 6044239902 scopus 로고    scopus 로고
    • note
    • 3), 117.76, 128.32, 129.04, 134.41 (phenyl), 130.57 (phCH), 145.53 (phCH=CH), 166.79 (carbonyl).
  • 17
    • 6044245243 scopus 로고    scopus 로고
    • note
    • 2).
  • 20
    • 6044246594 scopus 로고    scopus 로고
    • note
    • The ratios of the calculated areas of the two absorption bands (C=C and C=O as an internal standard) before and after exposure were compared to determine the degree of conversion of the cinnamoyl C=C bonds.
  • 24
    • 6044250698 scopus 로고    scopus 로고
    • note
    • The photocured samples had an average dimension of 25 × 2 × 2 mm. Twenty-five specimens were prepared for each formulation.
  • 25
    • 0041735297 scopus 로고    scopus 로고
    • Free radical copolymerization of a cinnamate with some vinyl monomers such as methyl methacrylate has been reported to thermally occur in the presence of a peroxide initiator (see Esen, H.; Kusefoglu S. H. J. Appl. Polym. Sci. 2003, 89, 3882).
    • (2003) J. Appl. Polym. Sci. , vol.89 , pp. 3882
    • Esen, H.1    Kusefoglu, S.H.2
  • 27
    • 6044251478 scopus 로고    scopus 로고
    • note
    • Flexural strength was measured with a universal testing machine (Instron 6022) at a cross-head speed of 0.75 mm/min.
  • 28
    • 6044229998 scopus 로고    scopus 로고
    • note
    • It was confirmed by differential scanning calorimetry and FT-IR spectroscopy that the cyclobutane structure is thermally stable up to 100 °C.
  • 29
    • 6044227290 scopus 로고    scopus 로고
    • note
    • The time periods required for crack healing in the other systems are much longer than that in our system: several hours (refs 3b and 6), 48 h (ref 5), and 8 months (ref 4) compared to 10 min in this work.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.