Journal of Inorganic and Organometallic Polymers

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Synthesis and characterization of alternating silane copolymers: (Me2Si−R2Si−Me2Si) n
Journal of Inorganic and Organometallic Polymers - Tập 5 - Trang 217-236 - 1995
Rogerio Menescal, Robert West, Marianne Blazsó
Bimodal molecular weight distributions of alternating copolymers of the type (Me2Si−R2Si−SiMe2) n , where R=hexyl and butyl, were obtained by polymerization of BrSiMe2−R2Si−Me2SiBr, using the Wurtz coupling method. Analysis of the samples by pyrolysis GC MS and solution29Si NMR indicated that some randomization occurred, due to cleavage of the original Si−Si bonds...... hiện toàn bộ
Synthesis of phosphazene-substituted polysiloxanes
Journal of Inorganic and Organometallic Polymers - Tập 1 Số 1 - Trang 105-114 - 1991
R Puyenbroek, A. P. Jekel, J. C. Van De Grampel
Preface
Journal of Inorganic and Organometallic Polymers - Tập 1 Số 3 - Trang 245-246 - 1991
John M. Zeigler
Hydroxylated Cyclophosphazene/Silica Hybrid Materials: Synthesis and Characterization
Journal of Inorganic and Organometallic Polymers - - 2002
Sandra Dirè, Giacomo Facchin, Riccardo Ceccato, Luigi Guarino, Alessandro Sassi, Mario Gleria
The synthesis of new hybrid materials that are prepared by the sol-gel technique is presented. The synthesis involves the reaction of a free hydroxylic group-containing cyclophosphazene, hexakis(4-hydroxyphenoxy)cyclophosphazene, and a hydrolyzed tetraethoxysilane under acid catalysis. Evidence for the formation of genuine chemical bonds between the hydroxylated cyclophosphazene and the three-dime...... hiện toàn bộ
Synthesis and Redox Properties of a π-Conjugated Cyclobutadienecobalt Polymer Containing Ferrocenyl Groups
Journal of Inorganic and Organometallic Polymers - Tập 10 - Trang 209-219 - 2000
Masaki Murata, Takeo Hoshi, Isao Matsuoka, Takuya Nankawa, Masato Kurihara, Hiroshi Nishihara
The reaction of CpCo(PPh3)2, in which Cp=η 5-cyclopentadienyl, with a π-conjugated diacetylene, FcC≡C–o-C6H4–C≡CFc, in which Fc=ferrocenyl, was found to give a cyclobutadienecobalt mononuclear complex, {η 4-C4Fc2(o-FcC6H4)2}CoCp (1), the crystal structure of which was determined by X-ray crystallography. In contrast, the reaction of CpCo(PPh3)2 with FcC≡C–p-C6H4–C≡CFc affords a cyclobutadienecobal...... hiện toàn bộ
Spectrophotometric Studies of the Coordination Polymers Based on Poly(8-Hydroxyquinoline) Matrix
Journal of Inorganic and Organometallic Polymers - - 2003
Seddique M. Ahmed, Mohamed M. Shahata, Mostafa M. Kamal
Incorporation of various metal ions into a poly(8-hydroxyquinoline) (PHQ) matrix via a complexation mechanism to form the corresponding coordination polymers was investigated experimentally and computationally. TGA, DTG, MS, and elemental analysis measurements show that the polymeric chelates of copper(II) ion with the PHQ matrix have a hydrophilic nature about two-times stronger than the salt (i....... hiện toàn bộ
Inclusion Compound of Poly(vinyl alcohol) with Multivalent Molybdenum Coordination Compound
Journal of Inorganic and Organometallic Polymers - Tập 11 - Trang 235-245 - 2001
Cheng Xiansu, Guan Huaimin, Su Yingcao, Wang Jiafang
An inclusion compound of Mo(VI,V,IV) complexes and poly(vinyl alcohol) (PVA) that contains some carbonyl groups was prepared by a photoelectron transfer reaction between PVA and 12-molybdophosphoric acid (PMo12). A dark-blue film was obtained when the aqueous solution of PMo12 and PVA was irradiated with UV light. The film exhibited the characteristic electron spin resonance (ESR) signal of Mo(V)....... hiện toàn bộ
Hành vi nhiệt của các polymer phosphazene vô cơ-hữu cơ lai mới Dịch bởi AI
Journal of Inorganic and Organometallic Polymers - Tập 6 - Trang 255-265 - 1996
G. Bosscher, R. H. Wieringa, A. P. Jekel, J. C. van de Grampel
Hành vi nhiệt của các hệ thống sau đây đã được điều tra bằng TGA và XPS: homopolymer của N:P:Cl4(CH2)(CH2C6H4CH−CH2) (1), copolymer của 1 với MMA và styrene, và copolymer của N:P:Cl4(1-C3II) [C[OC(O)CH3]−CH3] (2) với MMA và styrene. Khi đun nóng dưới điều kiện TGA, năng suất than cao nhất (64wt%) được tìm thấy đối với homopolymer của 1. Năng suất than của các copolymer dường như tăng lên khi lượng...... hiện toàn bộ
Poly(oxyphosphazenes): A unifying look at structure and morphology
Journal of Inorganic and Organometallic Polymers - Tập 2 - Trang 213-229 - 1992
Joseph H. Magill
Variations in thermotropic behavior have been investigated for many crystalline polyphosphazenes. Experimental results obtained from DSC, solid-state MAS NMR, dilatometry, mechanical property (creep and dynamic) measurements, birefringence, X-ray (wide and small-angle), and electron diffraction have been made as a function of temperature in an attempt to elucidate the structure-morphology behavior...... hiện toàn bộ
Novel Type of Metal-Containing Polyimides for the Heck and Suzuki–Miyaura Cross-Coupling Reactions as Highly Active Catalysts
Journal of Inorganic and Organometallic Polymers - Tập 13 - Trang 223-235 - 2003
Turgay Seçkin, Süleyman Köytepe, Serpil Demir, Ismail Özdemir, Bekir Cetinkaya
Novel palladium (II)-containing polyimides with exceptional catalytic properties for the Heck and Suzuki–Miyaura cross-coupling reactions were prepared from Pd(II)-α-bis(imine) complex and the corresponding dianhyrides. The glass transition temperatures (T g ) of the polymers ranged from 169 to 241°C. The temperatures at which 10% weight loss occurred in air rang...... hiện toàn bộ
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