This text file contains descriptions of all videos submitted as Supporting Information for the paper entitled "On the Method of Pulse-Heated Analysis of Solid Reactions (PHASR) for Polyolefin Pyrolysis."

Original videos were taken using a high-speed Phantom eX-2 camera with a macro lens (Carl Zeiss, Makro-Planar 2/100 zf.2) attached with Nikon PK-13, PK-12, PK-13, and PK-11A extension rings. A high power direction light source (Prior, Lumen 2000) was used to illuminate reactor during visual experiments. All raw footage was captured at 1000 fps. Videos included in this Supporting Information are cut from the raw footage to encapsulate only the 2 seconds during which the reaction pulses occurred.

Video_S01:
This video shows a side view of the Visual PHASR system. A 15 µm film of LDPE is subjected to a 500 °C reaction pulse for 2 s. This video is played back at a framerate of 30 fps (~33.3 times slower than realtime).

Video_S02:
This video shows a side view of the Visual PHASR system. A 15 µm film of LDPE is subjected to a 500 °C reaction pulse for 2 s. This video is played back at a framerate of 1000 fps (realtime) and is the same footage as Video_S01.

Video_S03:
This video shows a top view of the Visual PHASR system. A 15 µm film of LDPE is subjected to a 500 °C reaction pulse for 2 s. This video is played back at a framerate of 30 fps (~33.3 times slower than realtime).

Video_S04:
This video shows a side view of the Visual PHASR system. A 15 µm film of LDPE is subjected to a 550 °C reaction pulse for 2 s. This video is played back at a framerate of 30 fps (~33.3 times slower than realtime).

Video_S05:
This video shows a side view of the Visual PHASR system. A 15 µm film of LDPE is subjected to a 550 °C reaction pulse for 2 s. This video is played back at a framerate of 1000 fps (realtime) and is the same footage as Video_S04.

Video_S06:
This video shows a top view of the Visual PHASR system. A 15 µm film of LDPE is subjected to a 550 °C reaction pulse for 2 s. This video is played back at a framerate of 30 fps (~33.3 times slower than realtime).

Video_S07:
This video shows a side view of the Visual PHASR system. A 15 µm film of LDPE is subjected to a 600 °C reaction pulse for 2 s. This video is played back at a framerate of 30 fps (~33.3 times slower than realtime).

Video_S08:
This video shows a side view of the Visual PHASR system. A 15 µm film of LDPE is subjected to a 600 °C reaction pulse for 2 s. This video is played back at a framerate of 1000 fps (realtime) and is the same footage as Video_S07.

Video_S09:
This video shows a top view of the Visual PHASR system. A 15 µm film of LDPE is subjected to a 600 °C reaction pulse for 2 s. This video is played back at a framerate of 30 fps (~33.3 times slower than realtime).

Video_S10:
This video shows a side view of the Visual PHASR system. A 15 µm film of LDPE is subjected to a 650 °C reaction pulse for 2 s. This video is played back at a framerate of 30 fps (~33.3 times slower than realtime).

Video_S11:
This video shows a side view of the Visual PHASR system. A 15 µm film of LDPE is subjected to a 650 °C reaction pulse for 2 s. This video is played back at a framerate of 1000 fps (realtime) and is the same footage as Video_S10.

Video_S12:
This video shows a top view of the Visual PHASR system. A 15 µm film of LDPE is subjected to a 650 °C reaction pulse for 2 s. This video is played back at a framerate of 30 fps (~33.3 times slower than realtime).