The epoxide equivalent weight (EEW) of LCER is 196.2g [eq.sup.-1].
d, aromatic), 7.69 (2H, d, =CH-): MS: m/ z: 379 [M+1]; EEW = 196.2g [eq.sup.-1].
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EEWS monitors ground motion in real time to detect the presence of P-wave signatures of a remote strong earthquake.
The output of the EEWS is a binary signal reporting the absence or presence of a precursor of the strong ground motion associated with the S-waves.
Since shutting down the processes is usually associated with high costs, the EEWS is required to be highly reliable and not prone to false alarms.
Diglycidyl ether of bisphenol-A (DGEBA, epoxy equivalent weight, EEW 196) was obtained from Wuxi Resin Factory, China, with a commercial code of E51.
Further structural confirmation was made by means of the EEW titration.
Instrumental analysis on EP-SSQ hybrid resins: Epoxy equivalent weight (EEW) = 268; softening point: 37[degrees]C; FTIR (KBr, [cm.sup.-1]): 1323 (Si-O-[CH.sub.2]-), 1110 (Si-O-Si), 915 (oxirane ring), 2930, 2856 ([CH.sub.2]-).
The EEW values of the EP-SDOH hybrid resins are listed in Table 1 and the difference in EEW values could also explain the reaction between oxirane group and Si-OH.
The softening points of EP-SDOH hybrid resins were measurable and increased with SDOH content increasing, since high feeding of SDOH resulted in hybrid resins with high molecular weights, i.e., high EEW values.