We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Local Glass Transition Temperature <italic>T</italic><sub>g</sub>(<italic>z</italic>) Profile in Polystyrene next to Polybutadiene with and without Plasticization Effects.
- Authors
Kasavan, Benjamin L.; Baglay, Roman R.; Roth, Connie B.
- Abstract
Abstract: Rubber toughening of glassy polystyrene (PS) has been manufactured commercially for decades as high impact polystyrene, where rubbery poly‐butadiene (PB) inclusions are added to modify the PS matrix response to deformation and impact. In this study, measurements of the local glass transition temperature <italic>T</italic>g(<italic>z</italic>) of PS next to PB rubber are presented, expanding the previous data to a polymer with a much lower <italic>T</italic>g value (PB <italic>T</italic>gbulk = −96 °C). After accounting for a small molecule additive present in the commercial PB sample that would otherwise migrate over to the PS domain causing plasticization, it is found that the <italic>T</italic>g(<italic>z</italic>) profile in PS next to PB is consistent with previous results. It is also demonstrated that these broad and asymmetric experimentally observed <italic>T</italic>g(<italic>z</italic>) profiles are not caused by the migration of low molecular weight chains across the interface by comparing samples made with two different poly(<italic>n</italic>‐butyl methacrylate) molecular weights.
- Subjects
POLYSTYRENE; GLASS transition temperature; POLYBUTADIENE; SMALL molecules; MOLECULAR weights
- Publication
Macromolecular Chemistry & Physics, 2018, Vol 219, Issue 3, p1
- ISSN
1022-1352
- Publication type
Article
- DOI
10.1002/macp.201700328