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You searched on: Author: tinh nguyen

Displaying records 61 to 70 of 121 records.
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61. Mapping Chemical Heterogeneity of Polymeric Materials with Chemical Force Microscopy
Published: 1/1/2004
Authors: Tinh Nguyen, Xiaohong Gu, Michael J Fasolka, Kimberly A Briggman, Jeeseong Hwang, Alamgir Karim, Jonathan W. Martin

62. Reciprocity Law Experiments in Polymeric Photodegradation: A Critical Review
Published: 9/1/2003
Authors: Jonathan W. Martin, Joannie W Chin, Tinh Nguyen
Abstract: celerating the photodegradation of polymeric materials is of great interest in weathering research. One way of achieving acceleration is by exposing polymeric materials to a high radiant flux, but questions have arisen as to whether high radiant fl ...

63. Surface and Interface Properties of UV-Exposed PVDF/PMMA-CO-PEA Blends
Published: 3/5/2003
Authors: Xiaohong Gu, Li Piin Sung, D L Ho, Chris A Michaels, D Nguyen, Y C Jean, Tinh Nguyen
Abstract: The surface and interface of PVDF blended with different amounts of poly (methyl methacrylate) and poly (ethyl acrylate) copolymer (PNMA-co-PEA) have been investigated before and after exposure to UV light. Dry free films having athickness of approx ...

64. Enhancing Sensitivity of Atomic Force Microscopy for Characterizing Surface Chemical Heterogeneity
Published: 2/26/2003
Authors: Xiaohong Gu, Mark R VanLandingham, Michael J Fasolka, Jonathan W. Martin, J Y Jean, Tinh Nguyen
Abstract: In this study, a well-controlled humidity system is used to enhance the sensitivity of A-FM in characterizing surface chemical heterogeneity. The relative humidity of the tip-sample environment is controlled using a humidity generator and a novel sm ...

65. Nanoscale Chemical Imaging of Polymeric Materials With Atomic Force Microscopy
Published: 2/26/2003
Authors: Xiaohong Gu, Tinh Nguyen, Michael J Fasolka, D Julthongpiput, Lei Chen, Mark R VanLandingham, Y C Jean, Jonathan W. Martin
Abstract: Nanoscale spatial chemical information is essential to developing a molecular-level understanding of a variety of phenomena occurring at surfaces and interfaces, including adhesion, friction, and surface reactivity. Therefore, the ability to probe an ...

66. Enhancing Sensitivity of Atomic Force Microscopy for Characterizing Surface Chemical Heterogeneity
Published: 1/1/2003
Authors: Xiaohong Gu, Mark R VanLandingham, Michael J Fasolka, Jonathan W. Martin, J Y Jean, Tinh Nguyen

67. Surface and Interface Properties of PVDF/Acrylic Copolymer Blends
Published: 11/1/2002
Authors: Xiaohong Gu, Tinh Nguyen, Mark R VanLandingham, D Nguyen
Abstract: Poly(vinylidene fluoride) (PVDF) is commonly blended with amorphous polymers to improve its optical property. The surface and interface properties of PVDF blended with different amounts of poly(methyl methacrylate) and poly(ethyl acrylate) copolymer ...

68. Automation in Building Design With Spatial Information.
Published: 9/23/2002
Authors: Tinh Nguyen, A A Oloufa

69. Relating Laboratory and Outdoor Exposure of Coatings: II. Effects of Relative Humidity on Photodegradation and the Apparent Quantum Yield of Acrylic-Melamine Coatings
Published: 9/1/2002
Authors: Tinh Nguyen, Jonathan W. Martin, E Byrd, E Embree
Abstract: The effects of relative humidity (RH) from <<1% to 90% on the photodegradation and quantum efficiency for a partially-methylated melamine acrylic coating exposed to UV/50 oC condition are reported. This investigation is part of a comprehensive study ...

70. Application of a Reliability-Based Methodology for Predicting the Outdoor Service Life of Polymers
Published: 5/1/2002
Authors: Joannie W Chin, Jonathan W. Martin, E Byrd, Tinh Nguyen, N Embree, J D Tate
Abstract: Organic polymers are a commercially important class of materials that are being increasingly used in outdoor applications such as paints, coatings, sealants, siding and roofing membranes, to name just a few. One of the most damaging elements in the ...

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