TY - JOUR T1 - THERMAL, MECHANICAL, AND FRACTURE PROPERTIES OF COPOLYUREAS FORMED BY REACTION INJECTION-MOLDING - EFFECTS OF HARD SEGMENT STRUCTURE JO - J APPL POLYM SCI PY - 1991/02/20 AU - RYAN AJ AU - BERGSTROM TB AU - WILLKOMM WR AU - MACOSKO CW ED - VL - 42 IS - 4 SP - 1023 EP - 1039 Y2 - 2025/05/16 ER -