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2015

Novel synthesis of branched polypropylene via solid-state shear pulverization

Diop, M. F. & Torkelson, J. M., Mar 9 2015, In : Polymer. 60, p. 77-87 11 p.

Research output: Contribution to journalArticle

16 Scopus citations

Residual stress relaxation and stiffness in spin-coated polymer films: Characterization by ellipsometry and fluorescence

Askar, S., Evans, C. M. & Torkelson, J. M., Oct 12 2015, In : Polymer. 76, p. 113-122 10 p.

Research output: Contribution to journalArticle

21 Scopus citations

Role of neighboring domains in determining the magnitude and direction of Tg-confinement effects in binary, immiscible polymer systems

Evans, C. M., Kim, S., Roth, C. B., Priestley, R. D., Broadbelt, L. J. & Torkelson, J. M., Dec 2 2015, In : Polymer. 80, p. 180-187 8 p.

Research output: Contribution to journalArticle

25 Scopus citations
30 Scopus citations
27 Scopus citations
22 Scopus citations
2014
41 Scopus citations
34 Scopus citations
48 Scopus citations
2013

Ester functionalization of polypropylene via controlled decomposition of benzoyl peroxide during solid-state shear pulverization

Diop, M. F. & Torkelson, J. M., Oct 8 2013, In : Macromolecules. 46, 19, p. 7834-7844 11 p.

Research output: Contribution to journalArticle

20 Scopus citations

Fragility is a key parameter in determining the magnitude of T g-confinement effects in polymer films

Evans, C. M., Deng, H., Jager, W. F. & Torkelson, J. M., Aug 13 2013, In : Macromolecules. 46, 15, p. 6091-6103 13 p.

Research output: Contribution to journalArticle

97 Scopus citations

Maleic anhydride functionalization of polypropylene with suppressed molecular weight reduction via solid-state shear pulverization

Diop, M. F. & Torkelson, J. M., Jul 19 2013, In : Polymer. 54, 16, p. 4143-4154 12 p.

Research output: Contribution to journalArticle

35 Scopus citations
23 Scopus citations

Simultaneous determination of critical micelle temperature and micelle core glass transition temperature of block copolymer-solvent systems via pyrene-label fluorescence

Evans, C. M., Henderson, K. J., Saathoff, J. D., Shull, K. R. & Torkelson, J. M., May 28 2013, In : Macromolecules. 46, 10, p. 4131-4140 10 p.

Research output: Contribution to journalArticle

11 Scopus citations
2012
15 Scopus citations

Imaging of phase segregation in gradient copolymers: Island and hole surface topography

Mok, M. M. & Torkelson, J. M., Feb 1 2012, In : Journal of Polymer Science, Part B: Polymer Physics. 50, 3, p. 189-197 9 p.

Research output: Contribution to journalArticle

17 Scopus citations
16 Scopus citations

Modulus, confinement, and temperature effects on surface capillary wave dynamics in bilayer polymer films near the glass transition

Evans, C. M., Narayanan, S., Jiang, Z. & Torkelson, J. M., Jul 17 2012, In : Physical Review Letters. 109, 3, 038302.

Research output: Contribution to journalArticle

44 Scopus citations

Overcoming technological issues associated with color additives in rotational molding via SSSP

Brunner, P. J. & Torkelson, J. M., Oct 1 2012, In : Plastics Engineering. 68, 9, p. 28-34 7 p.

Research output: Contribution to journalArticle

3 Scopus citations

Processing-structure-property relationships in solid-state shear pulverization: Parametric study of specific energy

Brunner, P. J., Clark, J. T., Torkelson, J. M. & Wakabayashi, K., Jul 1 2012, In : Polymer Engineering and Science. 52, 7, p. 1555-1564 10 p.

Research output: Contribution to journalArticle

37 Scopus citations

Shear-induced orientation in well-exfoliated polystyrene/clay nanocomposites

Dykes, L. M. C., Torkelson, J. M. & Burghardt, W. R., Feb 14 2012, In : Macromolecules. 45, 3, p. 1622-1630 9 p.

Research output: Contribution to journalArticle

28 Scopus citations
2011
86 Scopus citations

Effect of gradient sequencing on copolymer order-disorder transitions: Phase behavior of styrene/ n -butyl acrylate block and gradient copolymers

Mok, M. M., Ellison, C. J. & Torkelson, J. M., Aug 9 2011, In : Macromolecules. 44, 15, p. 6220-6226 7 p.

Research output: Contribution to journalArticle

35 Scopus citations

Glass transition temperature of a component near infinite dilution in binary polymer blends: Determination via fluorescence spectroscopy

Evans, C. M., Sandoval, R. W. & Torkelson, J. M., Sep 13 2011, In : Macromolecules. 44, 17, p. 6645-6648 4 p.

Research output: Contribution to journalArticle

20 Scopus citations
2010

Behavior of gradient copolymers at liquid/liquid interfaces

Yuan, W., Mok, M. M., Kim, J., Wong, C. L. H., Dettmer, C. M., Nguyen, S., Torkelson, J. M. & Shull, K. R., Mar 2 2010, In : Langmuir. 26, 5, p. 3261-3267 7 p.

Research output: Contribution to journalArticle

22 Scopus citations

Crumpled graphene nanosheets as highly effective barrier property enhancers

Compton, O. C., Kim, S., Pierre, C., Torkelson, J. M. & Nguyen, S. T., Nov 9 2010, In : Advanced Materials. 22, 42, p. 4759-4763 5 p.

Research output: Contribution to journalArticle

332 Scopus citations

Dielectric relaxation spectroscopy of gradient copolymers and block copolymers: Comparison of breadths in relaxation time for systems with increasing interphase

Mok, M. M., Masser, K. A., Runt, J. & Torkelson, J. M., Jul 13 2010, In : Macromolecules. 43, 13, p. 5740-5748 9 p.

Research output: Contribution to journalArticle

27 Scopus citations

Ellipsometry measurements of glass transition breadth in bulk films of random, block, and gradient copolymers

Mok, M. M., Kim, J., Marrou, S. R. & Torkelson, J. M., Mar 1 2010, In : European Physical Journal E. 31, 3, p. 239-252 14 p.

Research output: Contribution to journalArticle

20 Scopus citations

Kaolin-Epoxy-Based nanocomposites: A complementary study of the epoxy curing by FTIR and fluorescence

Castrillo, P. D., Olmos, D., Torkelson, J. M. & González-Benito, J., May 2010, In : Polymer Composites. 31, 5, p. 781-791 11 p.

Research output: Contribution to journalArticle

7 Scopus citations

Polypropylene-graphite nanocomposites made by solid-state shear pulverization: Effects of significantly exfoliated, unmodified graphite content on physical, mechanical and electrical properties

Wakabayashi, K., Brunner, P. J., Masuda, J., Hewlett, S. A. & Torkelson, J. M., Oct 29 2010, In : Polymer. 51, 23, p. 5525-5531 7 p.

Research output: Contribution to journalArticle

92 Scopus citations

Shear-induced orientation in polymer/clay dispersions via in situ X-ray scattering

Dykes, L. M. C., Torkelson, J. M., Burghardt, W. R. & Krishnamoorti, R., Oct 2010, In : Polymer. 51, 21, p. 4916-4927 12 p.

Research output: Contribution to journalArticle

30 Scopus citations

Suppression of the t g-nanoconfinement effect in thin poly(vinyl acetate) films by sorbed water

Kim, S., Mundra, M. K., Roth, C. B. & Torkelson, J. M., Jun 8 2010, In : Macromolecules. 43, 11, p. 5158-5161 4 p.

Research output: Contribution to journalArticle

47 Scopus citations
2009
103 Scopus citations

Glass transition breadths and composition profiles of weakly, moderately, and strongly segregating gradient copolymers: experimental results and calculations from self-consistent mean-field theory

Mok, M. M., Kim, J., Wong, C. L. H., Marrou, S. R., Woo, D. J., Dettmer, C. M., Nguyen, S. T., Ellison, C. J., Shull, K. R. & Torkelson, J. M., Oct 27 2009, In : Macromolecules. 42, 20, p. 7863-7876 14 p.

Research output: Contribution to journalArticle

71 Scopus citations

Preparation and characterization of multiwalled carbon nanotube dispersions in polypropylene: Melt mixing versus solid-state shear pulverization

Pujari, S., Ramanathan, T., Kasimatis, K., Masuda, J., Andrews, R., Torkelson, J. M., Brinson, L. C. & Burghardt, W. R., Jul 15 2009, In : Journal of Polymer Science, Part B: Polymer Physics. 47, 14, p. 1426-1436 11 p.

Research output: Contribution to journalArticle

35 Scopus citations

Streamlined ellipsometry procedure for characterizing physical aging rates of thin polymer films

Baker, E. A., Rittigstein, P., Torkelson, J. M. & Roth, C. B., Dec 15 2009, In : Journal of Polymer Science, Part B: Polymer Physics. 47, 24, p. 2509-2519 11 p.

Research output: Contribution to journalArticle

42 Scopus citations
2008

Cellular structures of carbon nanotubes in a polymer matrix improve properties relative to composites with dispersed nanotubes

Mu, M., Walker, A. M., Torkelson, J. M. & Winey, K. I., Mar 3 2008, In : Polymer. 49, 5, p. 1332-1337 6 p.

Research output: Contribution to journalArticle

84 Scopus citations

Compatibilized polymer blends with nanoscale or sub-micron dispersed phases achieved by hydrogen-bonding effects: Block copolymer vs blocky gradient copolymer addition

Kim, J., Sandoval, R. W., Dettmer, C. M., Nguyen, S. & Torkelson, J. M., May 27 2008, In : Polymer. 49, 11, p. 2686-2697 12 p.

Research output: Contribution to journalArticle

48 Scopus citations

Critical micelle concentrations of block and gradient copolymers in homopolymer: Effects of sequence distribution, composition, and molecular weight

Sandoval, R. W., Williams, D. E., Kim, J., Roth, C. B. & Torkelson, J. M., Dec 15 2008, In : Journal of Polymer Science, Part B: Polymer Physics. 46, 24, p. 2672-2682 11 p.

Research output: Contribution to journalArticle

28 Scopus citations
117 Scopus citations
77 Scopus citations
89 Scopus citations

Microphase separation and shear alignment of gradient copolymers: Melt rheology and small-angle X-ray scattering analysis

Mok, M. M., Pujari, S., Burghardt, W. R., Dettmer, C. M., Nguyen, S., Ellison, C. J. & Torkelson, J. M., Aug 12 2008, In : Macromolecules. 41, 15, p. 5818-5829 12 p.

Research output: Contribution to journalArticle

70 Scopus citations

Polymer - Graphite nanocomposites: Effective dispersion and major property enhancement via solid-state shear pulverization

Wakabayashi, K., Pierre, C., Diking, D. A., Ruoff, R. S., Ramanathan, T., Brinson, L. C. & Torkelson, J. M., Mar 25 2008, In : Macromolecules. 41, 6, p. 1905-1908 4 p.

Research output: Contribution to journalArticle

258 Scopus citations
2007
49 Scopus citations

Comparison of critical micelle concentrations of gradient copolymer and block copolymer in homopolymer: Novel characterization by intrinsic fluorescence

Wong, C. L. H., Kim, J., Roth, C. B. & Torkelson, J. M., Aug 7 2007, In : Macromolecules. 40, 16, p. 5631-5633 3 p.

Research output: Contribution to journalArticle

50 Scopus citations

Effect of spatial confinement on the glass-transition temperature of patterned polymer nanostructures

Mundra, M. K., Donthu, S. K., Dravid, V. P. & Torkelson, J. M., Mar 1 2007, In : Nano letters. 7, 3, p. 713-718 6 p.

Research output: Contribution to journalArticle

60 Scopus citations

Effects of nanoscale confinement and interfaces on the glass transition temperatures of a series of poly(n-methacrylate) films

Priestley, R. D., Mundra, M. K., Barnett, N. J., Broadbelt, L. J. & Torkelson, J. M., Oct 16 2007, In : Australian Journal of Chemistry. 60, 10, p. 765-771 7 p.

Research output: Contribution to journalArticle

90 Scopus citations

Eliminating the enhanced mobility at the free surface of polystyrene: Fluorescence studies of the glass transition temperature in thin bilayer films of immiscible polymers

Roth, C. B., McNerny, K. L., Jager, W. F. & Torkelson, J. M., Apr 3 2007, In : Macromolecules. 40, 7, p. 2568-2574 7 p.

Research output: Contribution to journalArticle

168 Scopus citations
68 Scopus citations