## Materials and Methods
### Dynamic Adsorption and Temperature Control Tests  
To test the regeneration and reuse performance of synthesized adsorbent HVPM, dynamic adsorption-desorption tests were conducted using toluene as an adsorbate. HVPM was dried in a vacuum oven at 120 \({}^{\circ}\)C for 6 h. The regeneration performance of HVPM was investigated using apparatus described in our previous work [27]. Toluene vapor was diluted with nitrogen before it entered the adsorption column (6 mm inner diameter \(\times\) 3 cm length) at a flow rate of 200 mL/min. By using a mass flow controller, the concentration of toluene vapor in the inlet was fixed at around 13,000 ppm. When the toluene vapor concentration in the outlet was constant and close to the initial concentration, the adsorbent was considered to be saturated by toluene. Desorption was then conducted by a vacuum pump, and a stream of purge gas was introduced into the column as carrying gas. Adsorption-desorption was carried out three times. The masses of the adsorption column loaded with HVPM before and after each cycle were recorded to calculate the adsorption capacities of HVPM.  
To examine the temperature-control capability of the synthesized adsorbent when it adsorbs high concentration VOCs, dynamic adsorption experiments, designed with an inner-column temperature recording system, were carried out, and toluene was used as an adsorbate. Two adsorption experiments were conducted. The first experiment used activated carbon (40.0 g) as an adsorbent to see the temperature rise during a high concentration toluene-adsorption process. The second experiment used the same amount of activated carbon, (40.0 g) plus HVPM (20.0 g), to verify the temperature-control capability of HVPM. Two adsorbents were evenly mixed then added into the column. The experimental apparatus is shown in Figure 2.  
A adsorbents were dried overnight in a vacuum oven at 120 \({}^{\circ}\)C before measurement. Adsorbent samples were precisely weighed as mentioned above and heated to 45 \({}^{\circ}\)C. These samples were then loaded into the adsorption column and filled half the adsorption column (0-5 cm). Because the amount of heat generated was limited during the adsorption for the limited  
Figure 1: Synthesis procedure for the polymeric adsorbent embedded with divinylbenzene-(DVB)wax microcapsules.  
number of adsorbents, the adsorption process was carried out starting at 45 \({}^{\circ}\)C. At this temperature, it was helpful for revealing the temperature-control capability of the synthesized polymeric adsorbent because the phase change temperature of encapsulated wax was around 45 \({}^{\circ}\)C, shown by the DSC test. Toluene vapor was diluted with nitrogen before it entered the adsorption column (5 cm inner diameter \(\times\) 10 cm length), containing the adsorbents at 900 mL/min. By using a mass flow controller, the concentration of toluene vapor in the inlet was fixed at around 65,000 ppm. The concentration of toluene in the exit gas stream was monitored with a Flame Ionization Detector. Gas chromatography was used to detect the concentration of VOC. Three thermocouples inserted at different locations in the column (0 cm, 5 cm, 10 cm) were used to detect the real-time temperature of the adsorption column and were connected to the temperature recorder. Tips of the three thermocouples were put in the middle of the column at respective locations. Real-time temperature data was recorded through the temperature recorder. The thermocouple at 0 cm was closest to the inlet of the toluene gas stream. Because the column was not fully filled, the temperature shown by thermocouple at 10 cm was used as a reference.