Method of preparing a poly(phenylene ether), poly(phenylene ether) made thereby, and article comprising the poly(phenylene ether)
A technology of phenylene ether and reaction mixture, which is applied in chemical/physical/physicochemical fixed reactors, color/spectral characteristic measurement, etc., and can solve problems such as product quality change restrictions
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[0051] The materials used in the following examples are described in Table 1.
[0052] Table 1
[0053]
[0054] The reaction mixtures used in Comparative Example 1 and Example 1 were prepared according to the compositions described in Table 2. The amount of each component is given in weight percent based on the total weight of the feed composition. The components were stirred thoroughly to ensure dissolution of the copper catalyst compound, and the resulting mixture was filtered to remove undissolved copper. In the following examples, the reaction mixture was charged to the feed vessel.
[0055] Table 2
[0056] components Concentration in feed (wt%) DMP 6.0 Cu 2 O / HBr 1
0.5 DBA 0.3 DMBA 0.9 diamine mixture 2
0.6 Toluene 91.7
[0057] 1 Cu 2 The weight ratio of O:HBr (48% aqueous solution w / w) is 1.00:11.5;
[0058] 2 The diamine mixture contained 0.2329 grams of DBEDA, 0.1242 grams of DDAC and 0.4193 gr...
Embodiment 1
[0068] The following examples were performed using an Advanced Flow Reactor, AFR, commercially available from Corning. The flow reactor used is a reactor in the form of a plate, where there are multiple plates arranged in series to provide sufficient reactor volume. The above feed composition (as liquid phase) and oxygen (as gas phase) flow through the reactor in co-current. The reaction mixture is pumped through the reactor at a predetermined flow rate. Once the reactor was full of liquid, the reactor was heated to 30°C by passing hot liquid through heat transfer plates surrounding the reactor. At the outlet of the reactor, the liquid phase is collected and the polymer is recovered and isolated to provide the desired poly(phenylene ether).
[0069] Flow reactor process conditions and parameters are given in Table 5. The reaction is carried out in a single reactor.
[0070] table 5
[0071] parameter set point Reactor volume 64ml (8 modules) liquid...
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