BCDEBiological Concept Diagram Editor (biomedical research)
BCDEBureau of Communicable Disease Epidemiology (Public Health Agency of Canada)
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BCDE (Cyra-cure 6105) was supplied by Cytec, and the TAS (Cyracure UVI-6974) was purchased from Ciba Specialty Chemicals.
CNE, BCDE, TAS, and the plasticizers cashew nut shell oil (CNO), ESO, castor oil (CO), DOP were mixed in various proportions to obtain the mixtures containing different ratios of the constituents (Table 1).
Table 1: Constituents' ratio of investigated UV curable systems Samples number CNE BCDE Total epoxy WP mol/kg WP mol/kg mol/kg 1 50 0.
The IR spectra of various coatings based on CNE, BCDE, TAS, with and without plaslicizer, before and after 18 s UV exposure, are presented in Fig.
1]) curable systems CNE BCDE CNE + BCDE 1 3475-3516 -OH stretching * - * 2 ~3000 Stretching of aromatic * * * and epoxy ring 3 2847-2935 CH, [CH.
2 s After 18 s rate mol/kg (%) mol/kg (%) (mol/kg s) CNE + BCDE + TAS 1 0.
This can be explained by some difference in reactivity of BCDE and CNE epoxides toward the cationic polymerization.
Consequently, almost all of the molecules of CNE and BCDE were involved in the formation of the tridimensional polymer network.
The participation of CNE, BCDE in the buildup of the polymer network, as well as the higher crosslink density provided by the plasticizing effect, is likely to play a major role in improving the thermal resistance of the UV-cured polymers.
The grams ABCD, BCDE, BCDK, PBCD, PBCE, and PBCK are maximal, the other grams become infrequent.
Finally, the set of maximal frequent sequences includes the sequences {ABCD, BCDE, BCDK, KLM, PBCD, HK, PBCE, PBCK}.