Open AccessCover Image, Volume 57, Issue 13
Publication year - 2019
Publication title -
journal of polymer science part a: polymer chemistry
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.768
H-Index - 152
eISSN - 1099-0518
pISSN - 0887-624X
DOI - 10.1002/pola.29132
Subject(s) - polyurea , emulsion polymerization , cover (algebra) , polymer science , polymerization , polymer , macromonomer , materials science , volume (thermodynamics) , emulsion , phase (matter) , composite material , chemical engineering , polymer chemistry , computer science , physics , chemistry , mechanical engineering , engineering , organic chemistry , thermodynamics , coating
On page 1373, scientists from The Dow Chemical Company discuss their finding that surfactant‐free acrylic emulsion polymerization in the presence of a self‐assembled polyurea macromer (PUM) nanodispersion resulted in hybrid acrylic‐polyurea particles. This hybrid emulsion formed films resembling a composite closed cell foam structure. The cover art shows the TEM of a representative film at two different magnifications. The interfacial volume between particles is illustrated to show the hypothesized polymer interaction between the acrylic phase and polyurea phase. Some intermixing at this phase boundary is expected to enable film formation, given that the PUM is not capable of forming a film on its own. (DOI: 10.1002/pola.29391 )