نتایج جستجو برای: methyl styrene mst

تعداد نتایج: 119409  

Journal: :ACS nano 2014
M Serdar Onses Abelardo Ramírez-Hernández Su-Mi Hur Erick Sutanto Lance Williamson Andrew G Alleyne Paul F Nealey Juan J de Pablo John A Rogers

Fundamental understanding of the self-assembly of domains in block copolymers (BCPs) and capabilities in control of these processes are important for their use as nanoscale templates in various applications. This paper focuses on the self-assembly of spin-cast and printed poly(styrene-block-methyl methacrylate) BCPs on patterned surface wetting layers formed by electrohydrodynamic jet printing ...

Journal: :Neurologia medico-chirurgica 1995
Y Iwadate H Namba K Sueyoshi

Intra-arterial (IA) chemotherapy has achieved no obvious clinical superiority as a treatment for glioblastoma multiforme despite the many theoretical advantages. The clinical courses of 38 patients who underwent surgery and radiotherapy with IA 1-(4-amino-2-methyl-5-pyrimidinyl)-methyl-3-(2-chloroethyl)-3-nitrosourea hydrochloride (ACNU) and cisplatin were reviewed. Tumor regrowth was evaluated...

Journal: :Soft matter 2016
Yi-Syuan Lu Chia-Yu Yu Yung-Chih Lin Shiao-Wei Kuo

In this study, the influence of the functional groups by the diblock copolymers of poly(styrene-b-4-vinylpyridine) (PS-b-P4VP), poly(styrene-b-2-vinylpyridine) (PS-b-P2VP), and poly(styrene-b-methyl methacrylate) (PS-b-PMMA) on their blends with octa-functionalized phenol polyhedral oligomeric silsesquioxane (OP-POSS) nanoparticles (NPs) was investigated. The relative hydrogen bonding strengths...

Journal: :Analytical chemistry 2004
Shiyong Liu Chi-Ming Chan Lu-Tao Weng Ming Jiang

Time-of-flight secondary ion mass spectrometry (TOF-SIMS) was used to quantitatively correlate to the surface chemical composition determined from XPS in poly(styrene-co-p-hexafluorohydroxyisopropyl-alpha-methyl styrene)/poly(4-vinyl pyridine) (PS(OH)/PVPy) blends or complexes when the p-(hexafluoro-2-hydroxyisopropyl)-alpha-methylstyrene (HFMS) contents in PS(OH) copolymers were gradually incr...

2016
Tomoya Takada Takuma Baba Shigeaki Abe Vijay Kumar Thakur

In this work, we investigated a simple one-step process for the formation of chemical bonds between multi-walled carbon nanotubes (MWCNTs) and benzyl-type side chain radicals generated by UV photolysis of polystyrene derivatives containing the chloromethyl (–CH2Cl) group. Poly(4-chloromethyl)styrene, or styrene/4-(chloromethyl)styrene random copolymer, was mixed with MWCNTs in 1-methyl-2-pyrrol...

Journal: :Toxicology 2006
Jou-Ku Chung Wei Yuan Guangxian Liu Jiang Zheng

Styrene has been found to be toxic to the respiratory system, and the toxicity of styrene is metabolism-dependent. CYP2E1 is suggested to be one of the cytochrome P450 enzymes responsible for the bioactivation of styrene. Our work focused on the roles of CYP2E1 and epoxide, a metabolite of styrene epoxidation, in the cytotoxicity of styrene. Styrene was found to be more toxic to h2E1 cells than...

Journal: :Applied and environmental microbiology 1995
K O'Connor C M Buckley S Hartmans A D Dobson

Styrene metabolism in styrene-degrading Pseudomonas putida CA-3 cells has been shown to proceed via styrene oxide, phenylacetaldehyde, and phenylacetic acid. The initial step in styrene degradation by strain CA-3 is oxygen-dependent epoxidation of styrene to styrene oxide, which is subsequently isomerized to phenylacetaldehyde. Phenylacetaldehyde is then oxidized to phenylacetic acid. Styrene, ...

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