Aggregation in grafted polymers with attractive end groups

Journal Article · Wed Jun 15 04:00:00 EDT 1994 · Journal of Chemical Physics; (United States)

DOI:https://doi.org/10.1063/1.466671· OSTI ID:7275295

Gersappe, D; Fasolka, M; Balazs, A C ^[1]; Jacobson, S H ^[2]

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1. Materials Science and Engineering Department, University of Pittsburgh, Pittsburgh, Pennsylvania 15261 (United States)
2. Hoechst Celanese Corporation, Summit, New Jersey 07901 (United States)

We used Monte Carlo computer simulations to determine the properties of grafted polymers that contain attractive functional groups ( stickers'') on the free ends of the chains. By varying the number of stickers and the grafting density, we isolated conditions that drive the chains to aggregate into clusters. We also observed that the attraction between the stickers effectively pulls'' the chain ends from the bulk of the brush and localizes these sites to the top of the grafted layer. The results provide guidelines for tailoring polymer brushes that display enhanced adhesive properties.

• DOE Contract Number: FG02-90ER45438
• OSTI ID: 7275295
• Journal Information: Journal of Chemical Physics; (United States), Journal Name: Journal of Chemical Physics; (United States) Vol. 100:12; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
360606 -- Other Materials-- Physical Properties-- (1992-)
ADHESION
AGGLOMERATION
CALCULATION METHODS
COMPUTERIZED SIMULATION
FUNCTIONALS
FUNCTIONS
GRAFT POLYMERS
MONTE CARLO METHOD
OPTIMIZATION
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PHYSICAL PROPERTIES
POLYMERS
SIMULATION
STRUCTURE FACTORS