WEBVTT Chapter 1 00:00:00.000 --> 00:01:22.000 Présentation de Jacques Livage Chapter 2 00:01:22.000 --> 00:06:04.000 Introduction Chapter 3 00:06:04.000 --> 00:59:47.000 La chimie douce et la silice Chapter 4 00:59:47.000 --> 1:01:10.000 Conclusion Chapter 5 1:01:10.000 --> 01:07:20.000 Questions