TY JOUR TI Vliyanie katalizatora trimerizacii izocianata na himicheskij sostav i prochnostnye harakteristiki poliuretan-poliizocianuratnyh penoplastov KW JO From Chemistry Towards Technology Step-By-Step AU Vlasov, R.R. AU Zaycev, S.D. PY 2024 IS 5 PB Yaroslavl State Technical University