1
|
Padmanabhan P, Chavis M, Ober CK, Escobedo FA. Phase behaviour of PMMA-b-PHEMA with solvents methanol and THF: modelling and comparison to the experiment. Soft Matter 2014; 10:6172-6181. [PMID: 25011061 DOI: 10.1039/c4sm00856a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Self-consistent field theory is used to model the self-assembly of a symmetric PMMA-block-PHEMA in the presence of two solvents, methanol and tetrahydrofuran (THF). The model predictions are compared to our experimental results of solvent-vapour annealing of thin polymer films, where the sequence of cylinder to gyroid (or micelles) to lamellar phases was found upon increasing the methanol-THF ratio and for particular extents of film swelling. The Hansen solubility parameters are used to estimate the Flory-Huggins interaction parameters (χ) needed in the theoretical model. However, because enacting the experimental range of high (χ)N values is computationally prohibitive, the use of moderate (χ)N values is compensated by employing larger values of the solvent-to-polymer size ratio (α). This approach is validated by showing that the predicted phase diagrams exhibit qualitatively similar trends whether (χ)N or α is increased. Using such an approach, the theory predicts a cylinder to gyroid to lamellar transition on increasing the THF-methanol ratio, a trend consistent with that observed in the experiments.
Collapse
Affiliation(s)
- P Padmanabhan
- School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY 14853, USA.
| | | | | | | |
Collapse
|
2
|
|
3
|
Abstract
AbstractWe have investigated new polymers of poly(phenylene vinylene), PPV and poly(phenylene), PP. Like polyimides, these polymers can be spin-coated from soluble intermediates and converted to their thermally stable forms by elimination of small groups during a heating cycle. As such, these polymers are insulating. Both poly(phenylene vinylene) and poly(phenylene) also have the potential for metallic conductivity when properly doped. During curing, the complete removal of the leaving groups is important in determining the final behavior of the aromatized polymer film. Elimination of the leaving groups was followed by means of Rutherford Backscattering (RBS) and Forward Recoil Spectrometry (FRES) analysis for various curing conditions and environments. We will describe the curing and film-forming properties of these polymers, and discuss both their dielectric characteristics and thermal stability as a function of the curing conditions.
Collapse
|
4
|
Genzer J, Sivaniah JE, Kramer EJ, Wang J, Körner H, Xiang ML, Yang S, Ober CK, Char K, Chaudhury MK, Dekoven BM, Bubeck RA, Fischer DA, Sambasivan S. Surfaces of Semi-Fluorinated Block Copolymers Studied Using Nexafs. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-524-365] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTThe molecular orientation within a surface liquid crystalline layer made up of semifluorinated side-groups [-CO-(CH2)x−x-(CF2)yF] (SF groups) attached to the isoprene block of a styrene-isoprene diblock copolymer was determined by analyzing the partial electron yield Cedge NEXAFS signal. The results show that in contrast to the bulk, where the SF groups lie parallel to the diblock copolymer lamellae and thus parallel to the surface, the surface SF groups make an average angle with the surface normal of between 29 and 46° depending on x and y.
Collapse
|
5
|
Wallace WE, Flynn KM, Guttman CM, VanderHart DL, Prabhu VM, De Silva A, Felix NM, Ober CK. Quantitative measurement of the polydispersity in the extent of functionalization of glass-forming calix[4]resorcinarenes. Rapid Commun Mass Spectrom 2009; 23:1957-1962. [PMID: 19504485 DOI: 10.1002/rcm.4099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The polydispersity in the degree of functionalization for two calix[4]resorcinarenes was determined by measuring quantitatively their molecular mass distribution with matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. A mathematical method for polydisperse materials is described that creates a calibration curve to correct the ion signal intensities in the mass spectrum to give a more reliable molecular mass distribution. Correction is required due to various sample preparation and instrumental effects that may produce a systematic mass bias in the number of oligomers measured. This method employs gravimetric mixtures of analytes with different degrees of functionalization. One calix[4]resorcinarene was found to give accurate molecular mass distributions with little correction, while another, having a very similar molecular structure, was found to exhibit strong over-counting of the oligomers having a high degree of functionalization.
Collapse
Affiliation(s)
- W E Wallace
- Polymers Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8541, USA.
| | | | | | | | | | | | | | | |
Collapse
|
6
|
Ober CK, Cheng SZD, Hammond PT, Muthukumar M, Reichmanis E, Wooley KL, Lodge TP. Research in Macromolecular Science: Challenges and Opportunities for the Next Decade. Macromolecules 2008. [DOI: 10.1021/ma802463z] [Citation(s) in RCA: 136] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- C. K. Ober
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853; Department of Polymer Science, University of Akron, Akron, Ohio 44325; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139; Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332; Department of Chemistry
| | - S. Z. D. Cheng
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853; Department of Polymer Science, University of Akron, Akron, Ohio 44325; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139; Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332; Department of Chemistry
| | - P. T. Hammond
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853; Department of Polymer Science, University of Akron, Akron, Ohio 44325; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139; Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332; Department of Chemistry
| | - M. Muthukumar
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853; Department of Polymer Science, University of Akron, Akron, Ohio 44325; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139; Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332; Department of Chemistry
| | - E. Reichmanis
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853; Department of Polymer Science, University of Akron, Akron, Ohio 44325; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139; Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332; Department of Chemistry
| | - K. L. Wooley
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853; Department of Polymer Science, University of Akron, Akron, Ohio 44325; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139; Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332; Department of Chemistry
| | - T. P. Lodge
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853; Department of Polymer Science, University of Akron, Akron, Ohio 44325; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139; Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332; Department of Chemistry
| |
Collapse
|
7
|
Sivaniah E, Genzer J, Hexemer A, Kramer EJ, Xiang ML, Li XF, Ober CK, Magonov S. Nonplanar Surface Organization of Monodendrons in Side-Chain Modified Liquid Crystalline Block Copolymers. Macromolecules 2008. [DOI: 10.1021/ma8015097] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | | | | | - S. Magonov
- Digital Instruments, Santa Barbara, California 93106
| |
Collapse
|
8
|
Hexemer A, Sivaniah E, Kramer EJ, Xiang M, Li X, Fischer DA, Ober CK. Managing polymer surface structure using surface active block copolymers in block copolymer mixtures. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/polb.10686] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
9
|
Koerner H, Luo Y, Li X, Cohen C, Hedden RC, Ober CK. Structural Studies of Extension-Induced Mesophase Formation in Poly(diethylsiloxane) Elastomers: In Situ Synchrotron WAXS and SAXS. Macromolecules 2003. [DOI: 10.1021/ma020856j] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hilmar Koerner
- School of Chemical and Biomolecular Engineering, Olin Hall, and Department of Materials Science and Engineering, Bard Hall, Cornell University, Ithaca, New York 14853
| | - Yixia Luo
- School of Chemical and Biomolecular Engineering, Olin Hall, and Department of Materials Science and Engineering, Bard Hall, Cornell University, Ithaca, New York 14853
| | - Xuefa Li
- School of Chemical and Biomolecular Engineering, Olin Hall, and Department of Materials Science and Engineering, Bard Hall, Cornell University, Ithaca, New York 14853
| | - Claude Cohen
- School of Chemical and Biomolecular Engineering, Olin Hall, and Department of Materials Science and Engineering, Bard Hall, Cornell University, Ithaca, New York 14853
| | - Ronald C. Hedden
- School of Chemical and Biomolecular Engineering, Olin Hall, and Department of Materials Science and Engineering, Bard Hall, Cornell University, Ithaca, New York 14853
| | - C. K. Ober
- School of Chemical and Biomolecular Engineering, Olin Hall, and Department of Materials Science and Engineering, Bard Hall, Cornell University, Ithaca, New York 14853
| |
Collapse
|
10
|
|
11
|
|
12
|
|
13
|
|
14
|
Affiliation(s)
- C K Ober
- Department of Materials Science, Cornell University, 327 Bard Hall, Ithaca, NY 14853-1501, USA.
| |
Collapse
|
15
|
Dierking I, Glusen B, Lagerwall ST, Ober CK. Synchrotron x-ray study of the smectic layer directional instability. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 2000; 61:1593-1598. [PMID: 11046442 DOI: 10.1103/physreve.61.1593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/1999] [Revised: 11/10/1999] [Indexed: 05/23/2023]
Abstract
We have investigated the phenomenon of field-induced smectic layer instability, as monitored by synchrotron x-ray scattering. This instability means that, upon application of time-asymmetric electric fields to chiral smectics, the layer direction seems to "rotate" locally around an axis given by the direction of the applied field. For moderate values of field amplitude and asymmetry, domains with a favored layer inclination grow at the expense of unfavored ones, while larger fields and asymmetries generally lead to a chaotic flow behavior. At moderate amplitudes, we have followed the process of the horizontal layer folding (or horizontal chevron domain formation) and the smectic C* layer reorientation of ferroelectric liquid crystals by applying symmetric and asymmetric wave forms, respectively, and performing time resolved x-ray measurements. The studies unambiguously show the formation of a horizontal (in-plane, i.e., in a plane parallel to the cell substrates) chevron domain structure from a nonoriented sample by application of a symmetric electric field of sufficient amplitude. It is then demonstrated that a transition from the horizontal chevron domain structure to an in-plane uniform smectic layer direction takes place on application of asymmetric electric wave forms. Reversal of the field asymmetry reverses the inclination direction and selects the other layer normal direction as the uniform end state. The in-plane smectic layer reorientation process is followed here as it evolves, and analyzed directly by means of x-ray scattering.
Collapse
Affiliation(s)
- I Dierking
- Department of Physics, Division of Microelectronics and Nanoscience, Chalmers University of Technology, S-41296 Goteborg, Sweden
| | | | | | | |
Collapse
|
16
|
Affiliation(s)
- C. Ortiz
- Cornell University, Department of Materials Science and Engineering and The Materials Science Center, Bard Hall, Ithaca, New York 14853
| | - M. Wagner
- Cornell University, Department of Materials Science and Engineering and The Materials Science Center, Bard Hall, Ithaca, New York 14853
| | - N. Bhargava
- Cornell University, Department of Materials Science and Engineering and The Materials Science Center, Bard Hall, Ithaca, New York 14853
| | - C. K. Ober
- Cornell University, Department of Materials Science and Engineering and The Materials Science Center, Bard Hall, Ithaca, New York 14853
| | - E. J. Kramer
- Cornell University, Department of Materials Science and Engineering and The Materials Science Center, Bard Hall, Ithaca, New York 14853
| |
Collapse
|
17
|
Affiliation(s)
- S. Perutz
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853
| | - J. Wang
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853
| | - E. J. Kramer
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853
| | - C. K. Ober
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853
| | - K. Ellis
- Department of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853
| |
Collapse
|
18
|
Affiliation(s)
- C. Ortiz
- Department of Materials Science and Engineering and The Materials Science Center, Bard Hall, Cornell University, Ithaca, New York 14850
| | - R. Kim
- Department of Materials Science and Engineering and The Materials Science Center, Bard Hall, Cornell University, Ithaca, New York 14850
| | - E. Rodighiero
- Department of Materials Science and Engineering and The Materials Science Center, Bard Hall, Cornell University, Ithaca, New York 14850
| | - C. K. Ober
- Department of Materials Science and Engineering and The Materials Science Center, Bard Hall, Cornell University, Ithaca, New York 14850
| | - E. J. Kramer
- Department of Materials Science and Engineering and The Materials Science Center, Bard Hall, Cornell University, Ithaca, New York 14850
| |
Collapse
|
19
|
Abstract
Optical amplification is demonstrated in waveguides of composite materials consisting of nanocrystals of Cr:forsterite or Cr:diopside embedded in a host polymer with a matching refractive index. Small-signal gains of 1dB / cm at lambda=1.23microm are reported.
Collapse
|
20
|
|
21
|
Affiliation(s)
- V. V. Tsukruk
- College of Engineering and Applied Sciences, Western Michigan University, Kalamazoo, Michigan 49008, Science Application International Corporation, 101 Woodman Drive, Suite 103, Dayton, Ohio 45431, Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, Wright Laboratory/MLPJ, Building 651, 3005 P Street, Ste 1, Wright-Patterson Air Force Base, Ohio 45433-7702
| | - T. J. Bunning
- College of Engineering and Applied Sciences, Western Michigan University, Kalamazoo, Michigan 49008, Science Application International Corporation, 101 Woodman Drive, Suite 103, Dayton, Ohio 45431, Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, Wright Laboratory/MLPJ, Building 651, 3005 P Street, Ste 1, Wright-Patterson Air Force Base, Ohio 45433-7702
| | - H. Korner
- College of Engineering and Applied Sciences, Western Michigan University, Kalamazoo, Michigan 49008, Science Application International Corporation, 101 Woodman Drive, Suite 103, Dayton, Ohio 45431, Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, Wright Laboratory/MLPJ, Building 651, 3005 P Street, Ste 1, Wright-Patterson Air Force Base, Ohio 45433-7702
| | - C. K. Ober
- College of Engineering and Applied Sciences, Western Michigan University, Kalamazoo, Michigan 49008, Science Application International Corporation, 101 Woodman Drive, Suite 103, Dayton, Ohio 45431, Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, Wright Laboratory/MLPJ, Building 651, 3005 P Street, Ste 1, Wright-Patterson Air Force Base, Ohio 45433-7702
| | - W. W. Adams
- College of Engineering and Applied Sciences, Western Michigan University, Kalamazoo, Michigan 49008, Science Application International Corporation, 101 Woodman Drive, Suite 103, Dayton, Ohio 45431, Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, Wright Laboratory/MLPJ, Building 651, 3005 P Street, Ste 1, Wright-Patterson Air Force Base, Ohio 45433-7702
| |
Collapse
|
22
|
Bunning TJ, Korner H, Tsukruk VV, McHugh CM, Ober CK, Adams WW. Structural Characterization of Biphenyl Ester-Based LC Molecules: Peculiarities of Cyclic Siloxane-Based Materials. Macromolecules 1996. [DOI: 10.1021/ma960637w] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- T. J. Bunning
- Science Applications International Corporation, 101 Woodman Drive, Dayton, Ohio 45431, Department of Materials Science and Engineering, Bard Hall, Cornell University, Ithaca, New York 14853, College of Engineering and Applied Sciences, Western Michigan University, Kalamazoo, Michigan 49008, and Materials Directorate, Wright Laboratory (WL/MLPJ), Wright-Patterson AFB, Ohio 45433
| | - H. Korner
- Science Applications International Corporation, 101 Woodman Drive, Dayton, Ohio 45431, Department of Materials Science and Engineering, Bard Hall, Cornell University, Ithaca, New York 14853, College of Engineering and Applied Sciences, Western Michigan University, Kalamazoo, Michigan 49008, and Materials Directorate, Wright Laboratory (WL/MLPJ), Wright-Patterson AFB, Ohio 45433
| | - V. V. Tsukruk
- Science Applications International Corporation, 101 Woodman Drive, Dayton, Ohio 45431, Department of Materials Science and Engineering, Bard Hall, Cornell University, Ithaca, New York 14853, College of Engineering and Applied Sciences, Western Michigan University, Kalamazoo, Michigan 49008, and Materials Directorate, Wright Laboratory (WL/MLPJ), Wright-Patterson AFB, Ohio 45433
| | - C. M. McHugh
- Science Applications International Corporation, 101 Woodman Drive, Dayton, Ohio 45431, Department of Materials Science and Engineering, Bard Hall, Cornell University, Ithaca, New York 14853, College of Engineering and Applied Sciences, Western Michigan University, Kalamazoo, Michigan 49008, and Materials Directorate, Wright Laboratory (WL/MLPJ), Wright-Patterson AFB, Ohio 45433
| | - C. K. Ober
- Science Applications International Corporation, 101 Woodman Drive, Dayton, Ohio 45431, Department of Materials Science and Engineering, Bard Hall, Cornell University, Ithaca, New York 14853, College of Engineering and Applied Sciences, Western Michigan University, Kalamazoo, Michigan 49008, and Materials Directorate, Wright Laboratory (WL/MLPJ), Wright-Patterson AFB, Ohio 45433
| | - W. W. Adams
- Science Applications International Corporation, 101 Woodman Drive, Dayton, Ohio 45431, Department of Materials Science and Engineering, Bard Hall, Cornell University, Ithaca, New York 14853, College of Engineering and Applied Sciences, Western Michigan University, Kalamazoo, Michigan 49008, and Materials Directorate, Wright Laboratory (WL/MLPJ), Wright-Patterson AFB, Ohio 45433
| |
Collapse
|
23
|
Abstract
Rod-coil block copolymers are self-assembling polymers that combine the physics of orientational ordering of rodlike polymers and the microphase separation of coil-coil block copolymers. Several new solid-state morphologies were observed in a series of anionically synthesized model poly(hexyl isocyanate-b-styrene) rod-coil diblock copolymers examined by transmission electron microscopy and selected-area electron diffraction. The rod-coils formed smectic C-like and O-like morphologies with domain sizes ranging from tens of nanometers to almost 1 micrometer. Both structural and orientational changes were found for increasing rod volume fractions. In addition, some morphologies exhibited spontaneous long-range orientational order over many tens of micrometers.
Collapse
Affiliation(s)
- JT Chen
- J. T. Chen and E. L. Thomas, Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. C. K. Ober and G.-p. Mao, Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853, USA
| | | | | | | |
Collapse
|
24
|
|
25
|
|
26
|
Dai CA, Dair BJ, Dai KH, Ober CK, Kramer EJ, Hui CY, Jelinski LW. Reinforcement of polymer interfaces with random copolymers. Phys Rev Lett 1994; 73:2472-2475. [PMID: 10057068 DOI: 10.1103/physrevlett.73.2472] [Citation(s) in RCA: 106] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
27
|
Galli G, Mcnamee SG, Ober CK. An investigation of the smectic-isotropic transition in a side-chain liquid crystal polymer by synchrotron radiation x-ray diffraction. ACTA ACUST UNITED AC 1993. [DOI: 10.1002/polb.1993.090310704] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
28
|
|
29
|
Barclay GG, McNamee SG, Ober CK, Papathomas KI, Wang DW. The mechanical and magnetic alignment of liquid crystalline epoxy thermosets. ACTA ACUST UNITED AC 1992. [DOI: 10.1002/pola.1992.080300907] [Citation(s) in RCA: 86] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
30
|
Barclay GG, Ober CK, Papathomas KI, Wang DW. Liquid crystalline epoxy thermosets based on dihydroxymethylstilbene: Synthesis and characterization. ACTA ACUST UNITED AC 1992. [DOI: 10.1002/pola.1992.080300906] [Citation(s) in RCA: 91] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
31
|
|
32
|
|