Article

Compatibilizing Bulk Polymer Blends by Using Organoclays

Mayu SiDepartment of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794-2275; Department of Physics, North Carolina State University, Raleigh, North Carolina 27695; Advanced Light Source, Lawrence Berkeley Laboratory, Berkeley, California 94720-8225; and Hebrew Academy of Nassau County High School, Uniondale, New York 11553Tohru ArakiDepartment of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794-2275; Department of Physics, North Carolina State University, Raleigh, North Carolina 27695; Advanced Light Source, Lawrence Berkeley Laboratory, Berkeley, California 94720-8225; and Hebrew Academy of Nassau County High School, Uniondale, New York 11553Harald AdeDepartment of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794-2275; Department of Physics, North Carolina State University, Raleigh, North Carolina 27695; Advanced Light Source, Lawrence Berkeley Laboratory, Berkeley, California 94720-8225; and Hebrew Academy of Nassau County High School, Uniondale, New York 11553A. L. D. KilcoyneDepartment of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794-2275; Department of Physics, North Carolina State University, Raleigh, North Carolina 27695; Advanced Light Source, Lawrence Berkeley Laboratory, Berkeley, California 94720-8225; and Hebrew Academy of Nassau County High School, Uniondale, New York 11553Robert E. FisherDepartment of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794-2275; Department of Physics, North Carolina State University, Raleigh, North Carolina 27695; Advanced Light Source, Lawrence Berkeley Laboratory, Berkeley, California 94720-8225; and Hebrew Academy of Nassau County High School, Uniondale, New York 11553Jonathan SokolovDepartment of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794-2275; Department of Physics, North Carolina State University, Raleigh, North Carolina 27695; Advanced Light Source, Lawrence Berkeley Laboratory, Berkeley, California 94720-8225; and Hebrew Academy of Nassau County High School, Uniondale, New York 11553Miriam RafailovichDepartment of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, New York 11794-2275; Department of Physics, North Carolina State University, Raleigh, North Carolina 27695; Advanced Light Source, Lawrence Berkeley Laboratory, Berkeley, California 94720-8225; and Hebrew Academy of Nassau County High School, Uniondale, New York 11553

2006en

ABI

Abstract

We have studied the morphology of blends of PS/PMMA, PC/SAN24, and PMMA/EVA and compared the morphologies with and without modified organoclay Cloisite 20A or Cloisite 6A clays. In each case we found a large reduction in domains size and the localization of the clay platelets along the interfaces of the components. The increased miscibility was accompanied in some cases, with the reduction of the system from multiple values of the glass transition temperatures to one. In addition, the modulus of all the systems increased significantly. A model was proposed where it was proposed that in-situ grafts were forming on the clay surfaces during blending and the grafts then had to be localized at the interfaces. This blending mechanism reflects the composition of the blend and is fairly nonspecific. As a result, this may be a promising technology for use in processing recycled blends where the composition is often uncertain and price is of general concern.

Identifiers

DOI: 10.1021/ma060125+

Citations and references

Cited by 20 references

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