Fracture and Toughening of Composites of Polymers and Nanoscale Inorganic and Organic Fillers.
Block-Copolymers and Self-assembly
Working Experience
Oct 07-Current
Senior Scientist / Program Manager, Nanocomposites
July 02-Oct. 07
Senior Scientist / Cluster Manager, MPMC
Oct 01- July 02
Senior Scientist / Acting Cluster Manager, MBMC
Aug 01-Oct 01
Senior Scientist / Technical Manager, MBMC
Feb 99-Mar 01
Research Scientist
Oct 96-Feb 99
Postdoc Fellow, USM, USA
Dec 94-Oct 96
Postdoc Fellow, Cavendish Lab, Univ. of Cambridge
July 87-Mar 91
Lecturer, South China Univ. of Tech
Academic Qualifications
Ph.D., Department of Materials Science and Metallurgy, University of Cambridge, U. K. 1995
M.Sc. Dept. of Light Chemical Engineering, South China Univ. of Tech., China, 1987
B.Sc. Dept of Light Chemical Engineering, South China Univ. of Tech., China, 1984
Professional Appointments
Member, MRS, Singapore
Honours and Awards
Cambridge Overseas Scholarship
Selected Publications
M. Abdul Wahab and Chaobin He, “Self-Assembly, Optical, and Mechanical Properties of Surfactant-Directed Biphenyl-Bridged Periodic Mesostructured Organosilica Films with Molecular-Scale Periodicity in the Pore Walls” Langmuir, 2008, in press
Xu Jianwei; TOH Cher Ling; Ke Lin; Li Jason Jiesheng; Cho Ching Mui; Lu Xuehong; Tan Ee Wah; Chaobin He "Thermally Stable Blue-Light-Emitting Hybrid Organic-Inorganic Polymers Derived from Cyclotriphosphazene" Macromolecules, 41, 9624-9636, 2008
Hazrat Hussain, Mya Khine Yi and Chaobin He “Self-Assembly of Brush-Like Poly[poly(ethylene glycol) methyl ether methacrylate] Synthesized via Aqueous Atom Transfer Radical Polymerization”, Langmuir, 24, 13279-13286, 2008
C. S. Gudipati, Hazrat Hussain, M. J. Tan, Liu Ye, Chaobin He and Tom Davis “Synthesis of Poly(glycidylmethacrylate)-block-Poly(pentafluorostyrene) by RAFT: Precursor to Novel Amphiphilic Poly(glyceryl methacrylate)-block Poly(pentafluorostyrene” Macromol. Rapid. Comm. 29, 1902-1907 2008
Xu Li, Siew Yee Wong, Wuiwui Chauhari Tjiu, Benjamin Paul Lyons, Sue Ann Oh and Chaobin He, “Non-covalent functionalization of multi walled carbon nanoubes and their application for conductive composites” Carbon, 46: 829-832, 2008
Chaobin He, Tianxi Liu, Wuiwui Chauhari Tjiu, Hung-Jue Sue, and Albert F. Yee “Deformation and Fracture Mechanisms in Polyamide 6/Organoclay Nanocomposites” Macromolecules, 41: 193-202, 2008
D.C. Wu, Y. Liu and Chaobin He, “Thermal- and pH-Responsive Degradable Polymers”, Macromolecules, 41: 18-20, 2008
Masaya Kotaki, Ke Wang, Mei Ling Toh, Ling Chen, Siew Yee Wong, and Chaobin He “Electrically Conductive Epoxy/Clay/VGCF Hybrids” Macromolecules, 39, 908-911, 2006
Jianwei Xu, Xueming Liu, Joseph Kok-Peng Ng, Tingting Lin, and Chaobin He “Stable Trimeric Supramolecular Liquid Crystals Induced by Halogen Bond”, Journal of Materials Chemistry, 16: 3540-3545
2006
Yang Xiao, Lei Liu, Chaobin He, Wee Shong Chin, Tingting Lin, Khine Y. Mya, Junchao Huang and Xuehong Lu “Nano-Hybrid Luminescent Dot: Synthesis, Characterization and Optical Properties” Journal of Materials Chemistry, 16 (9): 829-836, 2006
Wong K, Sun GB, Zhang XQ, Dai H, Liu Y, Chaobin He, Leong KW , “PEI-g-chitosan, a novel gene delivery system with transfection efficiency comparable to polyethylenimine in vitro and after liver administration in vivo” Bioconjugate Chemistry, 17 (1): 152-158, 2006
Xueming Liu, Jianwei Xu, Xuehong Lu and Chaobin He "A Comparative Study on Luminescent Copolymers of Fluorene and Carbazole with Conjugated or d-Si Interrupted Structures: The Steric Effects " Macromolecules, 21, 1397-1402, 2006
Jianwei Xu, Xueming Liu, Chaobin He "Synthesis and Self-Assembly of Difunctional Halogen-Bonding Molecules: A New Family of Supramolecular Liquid-Crystalline Polymers" Macromolecules, 38, 3554-3557, 2005
Jianwei Xu, Cher Ling Toh, Xueming Liu, Chaobin He, and Xuehong Lu, “Synthesis and Self-assembly of Donor-Spacer-Acceptor Molecules: Liquid Crystals Formed by Single-Component ‘Complexes' via Intermolecular Hydrogen-Bonding Interaction” Macromolecules, 38, 1684-1690, 2005
Decheng Wu, Ye Liu, Chaobin He, and Suat Hong Goh, “Blue Photoluminescence from Hyperbranched Poly(amino ester)s” Macromolecules, 38, 9906-9909, 2005
Xu Li, Xian Jun Loh, Ke Wang, Chaobin He, and Jun Li, “Poly(ester urethane)s Consisting of Poly[( R)-3-hydroxybutyrate] and Poly(ethylene glycol) as Candidate Biomaterials: Characterization and Mechanical Property Study” Biomacromolecules, 6, 2740-2747, 2005
Liu Ye, Wu Decheng, Zhang Weide, Jiang Xun, Chaobin He, Chung Tai Shung, Goh Suat Hong, Leong Kam W. “Polyethylenimine (PEI)-Grafted Multiwalled Carbon Nanotubes for Stable Noncovalent Immobilization and Efficient Delivery of DNA”, Angewandte Chemie International Edition, 44, 4782-4785, 2005
Xueming Liu, Jianwei Xu, Xuehong Lu and Chaobin He, “Novel Glassy Tetra(N-alkyl-3-bromocarbazole-6-yl)silanes as Building Blocks for Efficient and Nonaggregating Blue-Light-Emitting Tetrahedral Materials” Organic Letters, 7, 2829-2832, 2005
Wu Decheng, Liu Ye, Chen Lin, Chaobin He, Chung Tai Shung, Goh Suat Hong, 2A2 + BB'B” Approach to Hyperbranched Poly(amino ester)s, Macromolecules, 38, 5519-5525, 2005
Xue-Ming Liu, Tingting Lin, Junchao Huang, Xiao-Tao Hao, K. S. Ong and Chaobin He, “Hyperbranched Blue to Red Light-Emitting Polymers Based on Tetrabromoarylsilanes: Synthesis, Optical and Electroluminescence Properties and Ab Initio Modeling Studies" Macromolecules, 38, 4157-4168, 2005
Xue-Ming Liu, Chaobin He, Jingmei Xu and Junchao Huang “Highly Efficient Blue Light-Emitting Glass Macromolecules Based on Tetraarylmethane/ silane and Fluorene: Synthesis, Thermal, Optical and Electrochemical Properties” Chemistry of Materials, 17, 434-441, 2005
Junchao Huang, Zhaolin Liu, Chaobin He and L. M. Gan, “Synthesis of PtRu nanoparticles from the hydrosilylation reaction and application as catalyst for direct methanol fuel cell” Journal of Physical Chemistry B, 109, 16644-16649, 2005
Junchao Huang, PC Lim, L. Shen, P. K. Pallathadka, Chaobin He "Cubic Silsesquioxane-Polyimide Nanocomposites with Improved Thermomechanical Properties and Dielectric Properties", Acta Materialia, 53, 2395-2404, 2005
Ke Wang, Wang Lei, Jingshen Wu, Ling Chen, Chaobin He “Preparation of Highly Exfoliated Epoxy-Clay Nanocomposites by “Slurry-Compounding: Process and Mechanisms” Langmuir, 21, 3613-3618, 2005
Junchao Huang, Zhaolin Liu, Xueming Liu, Chaobin He, Shue Y. Chow, Jisheng Pan “Platinum nanoparticles from the hydrosilylation reaction: capping agent, physical characterizations, and electrochemical property” Langmuir, 21, 699-704, 2005
Ke Wang, Ling Chen, Jingshen Wu, Mei Ling Toh, Chaobin He, Albert F. Yee, “Epoxy Nanocomposites with Highly Exfoliated Clay: Mechanical Properties and Fracture Mechanisms”, Macromolecules, 28, 788-800, 2005
K. Yi Mya, Xu Li, Ling Chen, Jun Li and Chaobin He, “Core-Corona Structure of Cubic Silsesquioxane-Poly(ethylene Oxide) in Aqueous Solution: Fluorescence, Light Scattering and TEM Studies” Journal of Physical Chemistry B, 109, 9455-9462, 2005
Ting Ting Lin, Weide Zhang, Junchao Huang, Chaobin He, "Reactivity and Curvature: a DFT Study of the Amination of Fullerenes and Carbon Nanotubes" Journal of Physical Chemistry B, 109, 13755-13760, 2005
Junchao Huang, Chaobin He and Xueming Liu, Self-assembly of Pt nanoparticles into spherical aggregates with an in-situ silsesquioxane template, Langmuir, 20, 5145-5148, 2004
Decheng Wu, Ye Liu, Chaobin He, Taishung Chung, and Suathong Goh, “Effects of Chemistries of Trifunctional Amines on Mechanisms of Michael Addition Polymerizations with Diacrylates” Macromolecules, 37, 6763-6770 2004
Xueming Liu, Chaobin He, Xiao-Tao Hao, Yangqing Li, K. S. Ong; "Hyper-Branched Blue Light-Emitting Alternating Copolymers of Tetrabromoarylmethane/silane and 9,9-Dihexylfluorene-2,7-diboronic Acid" Macromolecules, 37, 5965-5970 2004
Chaobin He, Xiao Yang, Junchao Huang, Ting Ting Lin, Khine Yi Mya, Xinhai Zhang, “High Efficient Luminescence Organic Cluster with Quantum Dot-Like Properties”, J. Am. Chem. Soc. 126, 7792-7793, 2004
Xue-Ming Liu, Li-Shan Wang, Lin Wang, Junchao Huang and Chaobin He. ‘The Effect of Salt and pH on the Phase-Transition Behaviors of Temperature-Sensitive Copolymers based on N-Isopropylacrylamide as Hydrophilic Segments', Biomaterials, 25, 5659-5666, 2004
Xue-Ming Liu, K. P. Pramoda, Yi-Yan Yang, Shue Yin Chow and Chaobin He ‘Cholesteryl-grafted functional amphiphilic poly(N-isopropylacrylamide-co-N-hydroxylmethylacrylamide): synthesis, temperature-sensitivity, self-assembly and encapsulation of a hydrophobic agent', Biomaterials, 25, 2619-2628, 2004
Junchao Huang, Khine Yi Mya, Yang Xiao, Xueming Liu, Chaobin He “Thermal mechanical properties of polyimide-epoxy nanocomposites from cubic silsesquioxane epoxides”, Journal of Materials Chemistry, 2004, 14, 2858 - 2863
Tingting Lin, Xue-Ming Liu and Chaobin He, “Ab Initio Investigation of the Structural and Electronic Properties of the Molecules and Crystals of Tetraphenyl Derivatives of Group IVA Elements”, Journal of Physical Chemistry B, 108, 17361-17368, 2004
Xuehong Lu, Chaobin He and A. C. Griffin “Crystallization and Phase Behaviors of Multicomponent Supramolecular Complexes Through Hydrogen-Bonding Association” Macromolecules, 36, 5195-5220, 2003
Ye Liu, Decheng Wu, Yuexia Ma, Guping Tang, Shu Wang, Chaobin He, T.S. Chung, Suathong Goh “Novel Poly(amino ester)s Obtained from Michael Addition Polymerizations of Trifunctional Amine Monomers with Diacrylates: Safe and Efficient DNA Carriers” Chem Comm (20): 2630-2631 2003
Ting Ting Lin, Chaobin He and Xiao Yang, “Theoretical Studies of Mono and Higher Phenyl Substituted Octahydrosilsesquioxanes”, Journal of Physical Chemistry B 107, 13788-13792, 2003
Jian Wei Xu; Chaobin He, Toh Kee Chua and Xuehong Lu “Intermolecular Interaction in Multicomponent Supramolecular Complexes Through Hydrogen-Bonded Association” Macromolecules, 35, 8846-8851, 2002
Liu, T. X., Petermann, J.; Chaobin He; Liu, Z. H.; and Chung, T.S., “Transmission Electron Microscopy Observations on Lamellar Melting of Cold-Crystallized Isotactic Polystyrene”, Macromolecules, 34: (13) 4305-4307 2001
Chaobin He, Puwei Liu, and Anselm C. Griffin, "Toward Negative Poisson Ratio Polymers Through Molecular Design"; Macromolecules, 31, 3145-3147, 1998
Ping Zhang, Chaobin He, Richard D. Carven, Jeffery A. Evans, Newton C. Fawcett, Yulian Wu and Richard B. Timmons, “Subsurface Formation of Amide in Polyethylene-co-Acrylic Acid Film—A Potentially Useful Reaction for Tethering Biomolecules to a Solid Support”; Macromolecules, 32(7), 2149-2155, 1999
Chaobin He, Athene M. Donald and Michael Butler, "In-situ Deformation Studies of Rubber Toughened PMMA: Influence of Rubber Particle Concentration and Crosslinking Densities"; Macromolecules, Vol. 31, 158-164, 1998
Chaobin He and Athene M. Donald, "Environmental Electron Scanning Microscopy (ESEM) Study of Morphology of Aggregated Polymer Latices"; Langmuir, 12, 6250-6256, 1996
Patents Filed
Wang Ke, Wu Jingshen, Chen Ling, He Chaobin
"Nanocomposites and process for their production"
Liu Ye, Wong Kok Hou, Sun Guobin, He Chaobin
"Polyalkylenimine (PAI)-graft-biodegradable polymers for delivery of bioactive agents"
Liu Ye, Wang Shu, He Chaobin
"Polymers for the delivery of bioactive agents and methods of their preparation"
He Chaobin, Xiao Yang, Huang Junchao, Khine Yi Mya "Quantum confined light-emitting dot material for low dimensional semiconductors"
Wang Ke, He Chaobin, Toh Meiling, Mya Khine Yi "Polymer/clay nanocomposites made by melt compounding polymer with a versatile batch"
Liu Ye, He Chaobin, Wu Decheng "Biodegradable poly(ester alkyleneimine)s and their applications"
Kotaki Masaya, Chaobin He, Ke Wang, "Electroconductive Curable Resin Compositions"
Norio Nakayama, Toshisjiko Takaki, Chaobin HE, Khine Yi Mya, Yang Xiao "Formulation for Hard Coating"
Kazuyuki Fukuda, Toshisjiko Takaki, Chaobin HE, Khine Yi Mya "A Process for Preparing a Composite Film of Polyimide and Clay Mineral"
Kazuyuki Fukuda, Toshisjiko Takaki, Chaobin HE, Khine Yi Mya "A Substrate for Circuit Boards"
