@@@Archive




2013

(131)R. Sakai, B. John, M. Okamoto, J.V. Seppala, J. Vaithilingam, H. Hussein, R. Goodridge
"Fabrication of Polylactide based Biodegradable Thermoset Scaffolds for Tissue Engineering Applications", Macromolecular Materials and Engineering, 298(1), 45-52 (2013) DOI: 10.1002/mame.201100436 (2012)


(132)C. Mizuno, B. John, M. Okamoto
"Percolated network structure formation and rheological properties in nylon 6/clay nanocomposites", Macromolecular Materials and Engineering, Macromolecular Materials and Engineering, 298, 400-411 (2013) DOI: 10.1002/mame.201200065(2012)


(133)A. Taki, B. John, S. Arakawa, M. Okamoto
"Structure and Rheology of Nanocomposite Hydrogels Composed of DNA and Clay", European Polymer Journal, 49, 923-931 (2013)


(13B1)M. Okamoto
"Synthetic biopolymer nanocomposites with the aim of tissue engineering scaffolds in Ceramic Nanocomposites: Properties and Applications", R. Banerjee editor, Cambridge: Woodhead Publishing 2013 in press.


(134)M. Okamoto, B. John
"Synthetic biopolymer nanocomposites for tissue engineering scaffolds", Progress in Polymer Science, 38, 1487-1503, (2013).


(135)T. Kawachi, Y. Matsuura, F. Iyoda, S. Arakawa, M. Okamoto
"Preparation and characterization of DNA/allophane composite hydrogels", Colloids and Surfaces B: Biointerfaces, 112, 429-434 (2013).


(136)T. Takeshita, Y. Matsuura, S. Arakawa, M. Okamoto
"Biomineralization of hydroxyapatite on DNA molecules in SBF: Morphological features and computer simulation", Langmuir, 29, 11975-11981, (2013).


(137)Y. Matsuura, F. Iyoda, S. Arakawa, B. John, M. Okamoto, H. Hayashi
"DNA adsorption characteristics of hollow spherule allophane nano-particles", Materials Science and Engineering C, 33, 5079-5083, (2013)



2012

(121)F. Iyoda, S. Hayashi, S. Arakawa, M. Okamoto
"Synthesis and adsorption characteristics of hollow spherical allophane nano-particles", Applied Clay Science, 56, 77-83 (2012)


(12B1)M. Okamoto
"Polylactide / Clay Nano-biocomposites" Chapter 4 in Environmental Silicate Nano-biocomposites", Springer-Verlag London Limited, pp 77-118 (2012)


(122) Y. Ando, H. Sato, H. Shinzawa, M. Okamoto, I. Noda, Y. Ozaki
"Isothermal melt crystallization behavior of neat poly(L-lactide) (PLLA) and PLLA / Organically Modified Layered Silicate (OMLS) nanocomposite studied by Two-dimensional (2D) Correlation Spectroscopy", Vibrational Spectroscopy, 60, 158-162 (2012)


2011
(111) November 2011 Newsletter of PPS (2011)



2010

(101)H. Hayashi, T. Mori, M. Okamoto, S. Yamasaki, H. Hayami
"Polyethylene Ionomer-based nano-composite foams prepared by a batch process and MuCell(R) Injection molding", Mater. Sci. Eng. C, 30, 62-70 (2010)


(102) M. Kajino, T. Saito, M. Okamoto, H. Sato, Y. Ozaki,
"Nonisothermal order-disorder phase transition of alkylammonium ions in nanoconfined space", Applied Clay Science, 48, 73-80 (2010)


(103) T. Saito, M. Okamoto
"Polypropylene-based nano-composite formation: Delamination of organically modified layered fille via solid-state processing", Polymer, 51, 4238-4242 (2010)


(104) T. Ishisue, M. Okamoto, K. Tashiro
"Real-Time Investigation of Crystallization in Nylon 6-Clay Nano-composite Probed by Infrared Spectroscopy", Polymer, 51, 5585-5591 (2010).




2009


(09B1) M. Okamoto
"Rheology in polymer/clay nano-composites: Mesoscale structure development and soft glassy dynamics" in Emerging technologies: Nano and Nano/Bio Composites, F. Hussain Eds., Taylor and Francis, pp57-78 (2009)

(091)Y. Katoh, M. Okamoto
"Crystallization controlled by layered silicates in nylon 6-clay nano-composite" Polymer,50, 4718-4726 (2009)


(092) T. Mori, H. Hayashi, M. Okamoto, S. Yamasaki, H. Hayami
"Foam Processing of Polyethylene Ionomers with Supercritical CO2", Composites: Part A, 40, 1708-1716 (2009)




2008


(08B1) M. Okamoto, gBiodegradable Polymer-based Nanocomposites: Nanostructure control and Nanocomposite Foaming with the Aim of Producing Nano-cellular Plasticsh in Bio-inorganic hybrid Nanomaterials, E.Ruiz-Hitzky, K. Ariga, Y.M. Lvov Eds., Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, pp 271-312 (2008)

(08B2) M. Okamoto, "Nano-structure Development and Foam Processing in Polymer/Layered Silicate Nano-composites" in Chapter 6, Polymeric Foams: Recent Development in Technology and Regilation, S. T. Lee Eds., Taylor and Francis (2008)

(081) Y.K. Kwon, Y. S. Ko, M. Okamoto, "Elongation Flow-induced Morphological Change of a Diblock Copolymer Melt of Polystyrene and Poly(ethylene propylene)" Polymer, 49, 2334-2341 (2008)

(082) M. Bitou, M. Okamoto, "Fabrication of porous 3-D structure from poly(L-lactide)-based nano-composite foams. Effect of foam structure on enzymatic degradation" Polym. Degrad. Stab., 93, 1081-1087 (2008)

(083) K. Asai, M. Okamoto, T. Tashiro "Crystallization Behavior of Nano-Composite Based on Poly(vinylidene fluoride) and Organically Modified Lyered Titanate" Polymer, 49, 4298-4306 (2008).

(084) T. Shigemori, M. Okamoto, S. Yamasaki, H. Hayami "Direct melt neutrization and nano-structure of polyethylene ionomer-based nano-composites" Composites: Part A, 39, 1924-1929 (2008)

(085) K. Asai, M. Okamoto, T. Tashiro "Real-Time Investigation of Crystallization in Poly(vinylidene fluoride)-based Nano-Composites Probed by Infrared Spectroscopy" Polymer, 49, 5186-5190 (2008)


2007

(07B1) M. Okamoto, "Polymer/Layered Filler Nanocomposites: An overview from science to technology", Macromolecular Engineering. Precise Synthesis, Materials Properties, Application, K. Matyjaszewski, Y. Gnanou, L. Leibler eds., Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, 2071-2134 (2007).

(071) T. Saito, M. Okamoto, R. Hiroi, M. Yamamoto, T. Shiroi, "Poly(p-phenylenesulfide)-based nano-composite formation: Dealmination of organically modified layered filled via solid-state processing"; Polymer, 48, 4143-4151(2007)

(072) M. Bito, M. Okamoto,"Fabrication of porous 3-D structure from poly(L-lactide)-based nano-composite foam via enzymatic degradation" Interm. Polymer Processing, 22, 446-454 (2007)


2006

(061) J. Y. Nam, M. Okamoto, "Morphology and crystallization kitenics in a mixture of low-molecular weight aliphatic amide and polylactide", Polymer, 47(4), 1340-1347 (2006).

(062) O. Yoshida, M. Okamoto, "Direct Melt Intercalation of Polymer Chains into Nano-Galleries: Interdigitated layer structure and interlayer expansion", J Polym. Eng.,26 (8-9), 919-939 (2006).

(063) M. Okamoto, "Recent advances in polymer/layered silicate nanocomposites: An overview from science to technology", Materials Science and Technology, 22(7), 756-779 (2006).

(064) F. Hussain, M. Okamoto, R. E. Gorga, gPolymer Matrix Nanocomposites, Processing manufacturing and application: An Overviewh J. Comp Mater., 40(17), 1511-1574 (2006).

(065) O. Yoshida, M. Okamoto, gDirect Melt Intercalation of Polylactide Chains into Nano-Galleries: Interlayer expansion and nanocomposite structureh Macromole. Rappid Commun. 27, 751-757 (2006)

(066) Y. Ito, M. Yamashita, M. Okamoto, gFoam Processing and Cellular Structure of Polycarbonate-based Nanocompositesh Macromole. Mater. Eng., 291, 773-783 (2006).

(067) Y. Ema, M. Ikeya, M. Okamoto, gFoam Processing and Cellular Structure of Polylactide-based Nanocompositesh Polymer, 47(15), 5350-5359(2006)

(068)
T. Saito, M. Okamoto, R. Hiroi, M. Yamamoto, T. Shiroi, "Dealmination of Organically Modified Layered Filler via Solid-State Processing" Macromole. Rapid Commun. 27, 1472-1475 (2006).

(069)
T. Saito, M. Okamoto, "Intercalation of diphenyl sulfide into nanao-galleries and preparation of poly(p-phenylenesulfide)-based nano-composites", Macromole. Mater. Eng., 291, 1367-1374 (2006).

(0610) M. Okamoto, "Polymer/Layered Silicate Nano-composites - Sturucture Development and Processing Operations; Intern. Polymer Processing XXI, 5, 487-496 (2006).

(0611) S. Sinha Ray, K. Okamoto, M. Okamoto, "Structure and Properties of Nanocomposites Based on Poly(butylene succinate) and Organically Modified Montmorillonite"; J. Apply. Polym. Sci., 102, 777-785 (2006).


2005

(05B1) M. Okamoto, "Biodegradable Polymer/Layered Silicate Nanocomposites: A Review" Handbook of Biodegradable Polymeric Materials and Their Applications, S.K. Mallapragada eds, American Scientific Publishers, California, USA. (2005).

(05B2) M. Okamoto, gRecent Advances in Polymer/Layered Silicate Nanocomposites: An overview from science to technologyh in Processing and Properties of Nanocomposites, S. G. Advani Ed., World Scientific & Imperial College Press, London (2005)


2004

(04B1) M. Okamoto, S. Sinha Ray, "Polymer/Clay Nanocomposites" Encyclopedia of Nanoscience and Nanotechnology, H. S. Nalwa Eds, American Scientific Publish, USA. (2003). (ISBN: 1-58883-064-0)

(041)P. Maiti, M. Okamoto,"Structural Development in Cycloolefin Copolymers Under Uniaxial Elongational Flow'' J of Apply Polym. Sci., 91, 3421-3427 (2004).

(042)R.Hiroi, S.Sinha Ray, M.Okamoto, T.Shiroi, "Organically Modified Layered Titanate: A New Nanofiller to Improve the Performance of Biodegradable Polylactide" Macromol. Rapid Commun., 25(15), 1359-1364 (2004).

(043)K. Taki, T. Yanagimoto, E. Funami, M. Okamoto, M. Ohshima, "Visual Observation of CO2 Foaming of Polypropylene-Clay Nanocomposites" Polym. Eng. Sci., 44(6), 1004-1011 (2004).

(044)M.Okamoto,"Biodegradable Polmer/Layered Silicate Nanocomposites: A Review" J. Ind. Eng. Chem., 10(7), 1156-1181 (2004).


2003

(031) Y. Kobori, Y. K. Kwon, M. Okamoto, "Elongation of Triblock Copolymer Melt: Elongation Flow Opto-Rheometry and Small Angle X-ray Scattering Study" Macromolecules, 36(5), 1656-1664(2003).

(032) S. S. Ray, K. Yamada, K. Ueda, M. Okamoto, "New Polylactide-Layered Silicate Nanocomposite2: Concurrent Improvement of Materials Properties, Biodegradability and Melt Rheology" Polymer, 44, 857-866 (2003).

(033) P. Maiti, M. Okamoto, "Crystallization Control via Silicate Surface in Nylon 6-Clay Nanocomposites" Macromol. Mater. Eng., 288, 440-445 (2003).

(034) S. Sinha Ray, K. Okamoto, M. Okamoto, "Structure-Property Relationship in Biodegradable Poly(butylenes succinate)/Layered Silicate Nanocomposites" Macromolecules, 36(7), 2355-2367 (2003).

(035)S. Sinha Ray, K. Yamada, M. Okamto, A. Ogami, K. Ueda, "New Polylactide/Layered Silicate Nanocomposites.3. High-Performance Biodegradable Materials" Chem. Mater., 15(7), 1456-1465 (2003).

(036)S. Sinha Ray, K. Yamada, M. Okamoto, K. Ueda, "Control of Biodegradability of Polylactide via Nanocomposite Technilogy" Macromol. Mater. Eng., 288(3), 203-208 (2003).

(037)Y. Fujimoto, S. Sinha Ray, M. Okamoto, A. Ogami, K. Yamada, K. Ueda, "Well-Controlled Biodegradable Nanocomposite Foams: From Microcellular to Nanocellular" Macromol. Rapid Commun., 24(7), 457-461 (2003).

(038)S.Sinha. Ray, K. Yamada, M. Okamoto, A. Ogami, K. Ueda, "New Polylactide /Layered Silicate Nanocomposites. 4. Strucuture, Properties and Biodegradability" Composite Interfaces, 10(4-5), 435-450 (2003).

(039)K. Okamoto, S. Sinha Ray, M. Okamoto, "New Poly(butylenes succinate)/Layered Silicate Nanocomposites. 2. Effect of Organically Modified Layered Silicates on Structure, Properties, Melt Rheology, and Biodegradability" J. Polym. Sci. Part B Polym. Phys., 41, 3160-3172 (2003).

(0310)M. Mitsunaga, Y. Ito, M. Okamoto, S. Sinha Ray, K.Hironaka, "Intercalated Polycarbonate/Clay Nanocomposites: Nanostructure Control and Foam Processing" Macromal. Mater. Eng., 288(7), 543-548 (2003).

(0311)S. Sinha Ray, K. Yamada, M. Okamoto, K. Ueda, "Biodegradable Polylactide/ Montmorillonite Nanocomposites" J. Nanosci. and Nanotech., 3(6), 503-510(2003).

(0312)S. Sinha Ray, M. Okamoto, "Polymer/Layered Silicate Nanocomposites: A Review from Preparation to Processing" Progress in Polym. Sci., 28(11), 1539-1641(2003).

(0313)S. Sinha Ray, K. Yamada, M. Okamoto, Y. Fujimoto, A. Ogami, K. Ueda, "New Polylactide/Layered Silicate Nanocomposites.5. Designing of Materials with Desired Properties" Polymer, 44, 6633-6646(2003).

(0314)S. Sinha Ray, M. Okamoto, "New Polylactide/Layered Silicate Nanocomposites, 6a Melt Rheology and Foam Processing " Macromol. Mater. Eng.,288(12), 936-944(2003).

(0315)J. Y. Nam, S Sinha Ray, M. Okamoto, "Crystallization Behavior and Morphology of Biodegradable Polylactide/Layered Silicate Nanocomposite" Macromolecules, 36, 7126-7131(2003).

(0316)S. Sinha Ray, M. Okamoto, "Biodegradable Polylactide and Its Nanocomposites : Opening a New Dimension for Plastics and Composites" Macromol. Rapid Commun., 24(14), 815-840 (2003).

(03B1) M. Okamoto, "Polymer/Layered Silicate Nanocomposites" Rapra Review Report, No.163, Rapra Tech. Ltd., UK. (2003). (ISBN: 1-85957-391-6)


2002

(021) P. Maiti, P. H. Nam, M. Okamoto, "Influence of Crystallization on Intercalation, Morphology and Mechanical Properties of Polypropylene/Clay Nanocomposites" Macromolecules, 35(6), 2042-2049 (2002).

(022) S. S. Ray, P. Maiti, M. Okamoto, K. Yamada, K. Ueda, "New Polylactide/Layered Silicate Nanocomposites. 1. Preparation, Characterization, and Properties" Macromolecules, 35(8), 3104-3110 (2002).

(023) S. S. Ray, K. Okamoto, P. Maiti, M. Okamoto, "New Poly(Butylene Succinate)/Layered Silicate Nanocomposites: Preparation and Mechanical Properties" J. Nanosci. Nanotech., 2, 171-176 (2002).

(024) S. S. Ray, K. Okamoto, K. Yamada, M. Okamoto, "Novel Porous Ceramic Material via Burning of Polylactide/Layered Silicate Nanocomposite" Nanoletters, 2(4), 423-425 (2002).

(025) P. H. Nam, M. Okamoto, P. Maiti, T. Kotaka, T, Nakayama, M. Takada, M. Ohshima, N. Hasegawa, A. Usuki, "Foam Processing and Cellular Structure of Polypropylene/Clay Nanocomposites" Polym. Eng. Sci., 42(9), 1907-1918 (2002).

(026) P. Maiti, P. H. Nam, M. Okamoto, T. Kotaka, N. Hasegawa, A. Usuki, "The Effect of Crystallization on the Structure and Morphology of Polypropylene/Clay Nanocomposites " Polym. Eng. Sci., 42(9) 1864-1871 (2002).

(027) S. S. Ray, K. Yamada, K. Ueda, M. Okamoto, "Polylactide-Layered Silicate Nanocomposite: A Novel Biodegradable Material" Nano Letters, 2 (10), 1093-1096 (2002).

(028) P. Maiti, M. Okamoto, K. Yamada, K. Ueda, K. Okamoto, "New Polylactide -Layered Silicate Nanocomposite: Role of Organoclay" Chem. Mater., 14(11), 4654-4661 (2002).

(029) S. S. Ray, K. Yamada, K. Ueda, M. Okamoto, A. Ogami, "New Polylactide/ Layered Silicate Nanocomposite: Nanoscale Control Over Multiple Properties" Macromol Rapid Commun., 23(16), 943-947 (2002).


2001

(011) M. Okamoto, S. Morita, Y. H. Kim, T. Kotaka, H. Tateyama, "Dispersed Structure Change of Smectic Clay/Poly(methyl methacrylate) Nanocomposites by Copolymerization with Polar Comonomers " Polymer, 42, 1201-1206 (2001).

(012) T. Kotaka, M. Okamoto, A. Kojima, Y. K. Kwon, S. Nojima, "Elongational Flow-Induced Morphology Change of Block Copolymers. Part 1. A Polystyrene-Block- Poly(Ethylene-Butylene)-Block-Polystyrene- Block-Poly (Ethylene-Butylene) Tetrablock Copolymer with Polystyrene Spherical Microdomains " Polymer, 42, 1207-1217 (2001).

(013) T. Kotaka, M. Okamoto, A. Kojima, Y. K. Kwon, S. Nojima, "Elongational Flow-Induced Morphology Change of Block Copolymers. 2. A Polystyrene-Block -Poly (Ethylene-Butylene)-Block-Polystyrene Triblock Copolymer with Cylindrical Microdomains " Polymer, 42, 3223-3231 (2001).

(014) M. Okamoto, S. Morita, T. Kotaka, "Dispersed Structure and Ionic Conductivity of Smectic Clay/Polymer Nanocomposites" Polymer, 42, 2685-2688 (2001).

(015) P. Maiti, M. Okamoto, T. Kotaka, "Elongational Flow Birefringence of Ethylene-Tetracyclododecene Copolymer" Polymer, 42, 3939-3942 (2001).

(016) M. Okamoto, P. H. Nam, P. Maiti, T. Kotaka, N. Hasegawa, A. Usuki, "A House of Cards Structure in Polypropylene/Clay Nanocomposites under Elongational Flow" Nanoletters, 1(6), 295-298 (2001).

(017) P. Maiti, M. Okamoto, T. Kotaka, "Flow Birefringence and strain-induced Hardening of Cycloolefin Copolymers under Elongational Flow" Polymer, 42, 9827-9835 (2001).

(018) P. H. Nam, M. Okamoto, P. Maiti, T. Kotaka, N. Hasegawa, A. Usuki, "A Hierarchical Structure and Properties of Intercalated Polypropylene/Clay Nanocomposites" Polymer, 42, 9633-9640 (2001).

(019) M. Okamoto, P. H. Nam, P. Maiti, T. Kotaka, T, Nakayama, M. Takada, M. Ohshima, N. Hasegawa, A. Usuki, H. Okamoto, "Biaxial Flow-Induced Alignment of Silicate Layers in Polypropylene/Clay Nanocomposite Foam" Nano Letters, 1(9), 503-505 (2001).


2000

(001) M. Okamoto, S. Morita, H. Taguchi, Y. H. Kim, T. Kotaka, H. Tateyama, "Synthesis and Structure of Smectic Clay/Poly(methyl methacrylate) and Clay/ Polystyrene Nanocomposites via In-Situ Intercalative Polymerization" Polymer, 41, 3887-3890 (2000).

(002) Y. H. Kim, M. Okamoto, T. Kotaka, T. Ougizawa, T. Tchiba, T. Inoue, "Phase structure Development in Poly (styrene-co-acrylonitrile)/Poly(methyl methacrylate) Blend under Elongational Flow" Polymer, 41, 4747-4749 (2000).

(003) S. Wang, A. Makinouchi, M. Okamoto, T. Kotaka, M. Maeshima, N. Ibe, T. Nakagawa, "Viscoplastic Material Modeling for the Stretch Blow Molding Simulation" Int. Polym. Proc., 15 (2), 166-175 (2000).

(004) M. Okamoto, H. Taguchi, H. Sato, T. Kotaka, H. Tateyama, "Dispersed Structure and Rheology of Lipophilized-Smectite/Toluene Suspensions" Langmuir, 16(9), 4055-4058 (2000).

(005) Y. H. Kim, M. Okamoto, T. Kotaka, "Development of Quenched Phase-separated Structure in Poly(styrene-co-acrylonitrile)/Poly(methyl methacrylate) Blend under Elongation " Macromolecules, 33(22), 8113-8116 (2000).