Molecular composites of rigid-rod polymers in the matrix of flexible-coil polymers. Preparation of thin-film nonlinear optical materials via soluble complexes

1990 ◽  
Vol 2 (6) ◽  
pp. 629-631 ◽  
Author(s):  
Michael F. Roberts ◽  
Samson A. Jenekhe
Keyword(s):  
Thin Film ◽  
Optical Materials ◽  
Nonlinear Optical ◽  
Nonlinear Optical Materials ◽  
The Matrix ◽  
Molecular Composites ◽  
Flexible Coil ◽  
Rigid Rod ◽  
Soluble Complexes

Electron microscopy of rod/coil molecular composites

1983 ◽  
Vol 41 ◽  
pp. 32-33
Author(s):  
S. J. Krause ◽  
W. W. Adams
Keyword(s):  
Critical Factor ◽  
High Strength ◽  
Chain Polymer ◽  
New Class ◽  
Reinforced Composite ◽  
Transmission Electron ◽  
The Matrix ◽  
Molecular Composites ◽  
Flexible Coil ◽  
Rigid Rod

Molecular composites are a new class of structural polymers which are lightweight, high-strength, high-modulus, and environmentally resistant. A rigid-rod, extended chain, polymer is used to reinforce a matrix of flexible, coil-like polymer with the intent of achieving a composite on the molecular level which is analagous to a macroscopic chopped-fiber reinforced composite. The critical factor in making a molecular composite is that the rod-like reinforcing molecules be well dispersed and not phase separate from the matrix polymer to insure that the aspect ratio (ratio of length to width) of the reinforcing phase has a high value. This paper reports the first transmission electron microsopy (TEM) study of phase separation in molecular composites.

Electron microscopy of a triblock copolymer molecular composite

1986 ◽  
Vol 44 ◽  
pp. 790-791
Author(s):  
T. Haddock ◽  
S. J. Krause ◽  
W. W. Adams
Keyword(s):  
Triblock Copolymer ◽  
Critical Factor ◽  
High Strength ◽  
Fiber Spinning ◽  
Chain Polymer ◽  
The Matrix ◽  
Molecular Composites ◽  
Polymer Component ◽  
Flexible Coil ◽  
Rigid Rod

Molecular composites are a new class of structural polymers which are high-strength, high-modulus, thermally stable, and environmentally resistant. A rigid-rod, extended chain polymer component is used to reinforce a matrix of flexible, coil-like polymer component with the intent of achieving a composite on the molecular level. The critical factor in processing a molecular composite is that the rod-like reinforcing component be well dispersed and not phase separate from the matrix component. We previously reported on the morphology of a molecular composite from a physical blend of rigid-rod and flexible-coil homopolymers. In this paper we are reporting on the morphology of a rigid-rod, flexible-coil, triblock copolymer processed by vacuum casting or fiber spinning from a dilute solution.

Chromophoric self-assembled multilayers. Organic superlattice approaches to thin-film nonlinear optical materials

1990 ◽  
Vol 112 (20) ◽  
pp. 7389-7390 ◽  
Author(s):  
DeQuan Li ◽  
Mark A. Ratner ◽  
Tobin J. Marks ◽  
ChongHua Zhang ◽  
Jian Yang ◽  
...  
Keyword(s):  
Thin Film ◽  
Optical Materials ◽  
Nonlinear Optical ◽  
Nonlinear Optical Materials ◽  
Self Assembled

Polyphenylene ether based thin-film nonlinear optical materials having high chromophore densities and alignment stability

1990 ◽  
Vol 23 (6) ◽  
pp. 1891-1894 ◽  
Author(s):  
Dao Rong Dai ◽  
Tobin J. Marks ◽  
Jian Yang ◽  
Paul M. Lundquist ◽  
George K. Wong
Keyword(s):  
Thin Film ◽  
Optical Materials ◽  
Nonlinear Optical ◽  
Nonlinear Optical Materials
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