New Poly(4-Dichloro)Maleimides: III. Synthesis and Characterization of Poly[Ether-Ester-Azomethine-(4-Chloro) Maleimides] and Poly(Azomethin Ester-Aspartimides)

2001 ◽  
Vol 13 (4) ◽  
pp. 269-280 ◽  
Author(s):  
C Gaina ◽  
V Gaina ◽  
M Sava
Keyword(s):  
Weight Loss ◽  
Synthesis And Characterization ◽  
Model Compounds ◽  
Elemental Analyses ◽  
Ether Ester

New poly[(N-ester-azo)-3-ether-4-chloro)maleimides] and poly(azomethin-ester-aspartimides) were synthesized by the reaction of N-[4-(formylphenoxy carboxylphenyl)]-3-(4-formylphenoxy)-4-chloromaleimide (3 a) or N-[4-formylphenoxycarbonylphenyl)maleimide (3 b) with various diamines. IR and elemental analyses confirmed the structures of the resulting polymers. A series of model compounds were synthesized to facilitate confirmation of the polymer structures. The polymers possess inherent viscosities in the range 0.17–0.42 dl g−1, solubility in aprotic dipolar solvents and 5% weight loss at temperatures above 300 °C.

Synthesis and characterization of segmented poly(ether ester amide)s from diglycol, adipic acid, and a nylon-6 oligomer

2014 ◽  
Vol 55 (4) ◽  
pp. 763-770 ◽  
Author(s):  
Chen Guo Li ◽  
Su Qing Li ◽  
Jing Bo Zhao ◽  
Zhi Yuan Zhang ◽  
Jun Ying Zhang ◽  
...  
Keyword(s):  
Adipic Acid ◽  
Nylon 6 ◽  
Synthesis And Characterization ◽  
Ether Ester

Synthesis and characterization of a poly(ether-ester) copolymer from poly(2,6 dimethyl-1,4-phenylene oxide) and poly(ethylene terephthalate)

2005 ◽  
Vol 99 (5) ◽  
pp. 2124-2131 ◽  
Author(s):  
B. García-Gaitán ◽  
M. del P. Pérez-González ◽  
M. C. Zárate-Acevedo ◽  
A. Martínez-Richa ◽  
G. Luna-Bárcenas ◽  
...  
Keyword(s):  
Ethylene Terephthalate ◽  
Synthesis And Characterization ◽  
Phenylene Oxide ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Ether Ester

Synthesis and characterization of polymer supported vitamin B12 model compounds

2000 ◽  
Vol 49 (11) ◽  
pp. 1338-1342 ◽  
Author(s):  
S Sailaja Devi ◽  
M Radhakrishna Reddy ◽  
P Sambasiva Reddy ◽  
K Hussain Reddy ◽  
K Mohana Raju
Keyword(s):  
Vitamin B12 ◽  
Synthesis And Characterization ◽  
Model Compounds ◽  
Polymer Supported

scholarly journals 3D0900 Synthesis and characterization of the chromophore model compounds of Photoactive Yellow Protein

2002 ◽  
Vol 42 (supplement2) ◽  
pp. S152
Author(s):  
H. Yamamoto ◽  
T. Sumi ◽  
N. Hamada ◽  
F. Tokunaga ◽  
T. Okamura ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Photoactive Yellow Protein ◽  
Model Compounds

Synthesis and Characterization of Highly Branched Poly(urethane-imide)s

2009 ◽  
Vol 79-82 ◽  
pp. 1575-1578
Author(s):  
Wen Qiu Chen ◽  
Chang Feng Yi ◽  
Zu Shun Xu
Keyword(s):  
Weight Loss ◽  
Acid Corrosion ◽  
Pyromellitic Dianhydride ◽  
Synthesis And Characterization ◽  
Aprotic Solvents ◽  
Dilute Acid ◽  
Chain Segment ◽  
Step Method ◽  
Aggregation Structure

A series of novel highly branched poly(urethane-imide)s (PUIs) were first successfully prep- ared by a two-step method with toluene-2,4-diisocyanate (TDI), pentaerythritol (PAT) and dianhydrides, including pyromellitic dianhydride (PMDA), 3,3′,4,4′-benzophenonetetracarboxylic dianhydride (BTDA) and 4,4'-oxydiphthalic anhydride (ODPA). It was found that the prepolymerization of PAT and TDI at 40 °C was ascertained to be 40 minutes. And the imidization of the prepolymer and PMDA was successfuly carried out after 120 °C for 2 hours. The XRD demonstrated that the obtained highly branched PUIs pre- sented semicrystalline aggregation structure which had clear crystal phase with the d-spacing around 0.39 nm. TGA curves exhibited that these highly branched PUIs had obviously two steps of weight loss attributed to the urethane chain segment and imide chain segment, respectively. The solubility testing indicated that the highly branched PUIs exhibited desirable solubility in various polar aprotic solvents, and were also resistant to dilute acid corrosion.

Macrotorials: synthesis and characterization of model compounds related to PTH (1–34)

2006 ◽  
pp. 472-474
Author(s):  
A. F. Spatola ◽  
W. Ma ◽  
A. Harvey ◽  
S. Chandrasekhar ◽  
J. A. Dodge
Keyword(s):  
Synthesis And Characterization ◽  
Model Compounds

Chemistry of Alkoxo Complexes, Part III *Synthesis and Characterization of Some Mono(carboxylato)mono (alkoxo)nickel(II) Complexes

1979 ◽  
Vol 34 (3) ◽  
pp. 459-463 ◽  
Author(s):  
B. P. Baranwal ◽  
G. K. Parashar ◽  
R. C. Mehrotra
Keyword(s):  
Molecular Weight ◽  
Magnetic Susceptibility ◽  
General Formula ◽  
Synthesis And Characterization ◽  
Probable Structure ◽  
Equimolar Ratio ◽  
Elemental Analyses ◽  
Infra Red ◽  
Interchange Reactions

AbstractA number of mono(carboxylato)mono(alkoxo)nickel(II) complexes of the general formula, Ni(OR)(OOCR′), (with R′ = C13H27, C15H35 and C17H35) have been synthesized (where R = Me and Pri) by the reactions of nickel methoxide and isopropoxide with the respective carboxylic acids in equimolar ratio and (where R = Et and But) by alcohol interchange reactions. A study of the molecular weight, infra-red and electronic reflectance spectra and magnetic susceptibility in addition to elemental analyses has been carried out to throw some light on the probable structure of these derivatives.

scholarly journals Boron difluoride formazanate copolymers with 9,9-di-n-hexylfluorene prepared by copper-catalyzed alkyne–azide cycloaddition chemistry

2016 ◽  
Vol 7 (21) ◽  
pp. 3589-3598 ◽  
Author(s):  
Stephanie M. Barbon ◽  
Joe B. Gilroy
Keyword(s):  
Light Harvesting ◽  
Synthesis And Characterization ◽  
Model Compounds ◽  
Related Model ◽  
Boron Difluoride

The synthesis and characterization of copolymers with promising light-harvesting properties and closely related model compounds based on boron difluoride formazanate and 9,9-di-n-hexylfluorene units are described.

scholarly journals Synthesis and characterization of cis-dioxomolybdenum(VI) complexes having furil as precursor molecule

2012 ◽  
Vol 77 (9) ◽  
pp. 1205-1210
Author(s):  
Devendra Rao ◽  
Hardeo Yadav ◽  
Ashok Yadava ◽  
Sanjay Singh ◽  
Uma Yadav
Keyword(s):  
Oxygen Transfer ◽  
Chelating Agent ◽  
Molar Conductance ◽  
Octahedral Geometry ◽  
Transfer Reactions ◽  
Synthesis And Characterization ◽  
Precursor Molecule ◽  
Elemental Analyses ◽  
Tetraazamacrocyclic Ligands

Synthesis of some new dioxomolybdenum(VI) complexes having general formula [MoO2(mac)](acac)2, (where mac = tetraazamacrocyclic ligands derived from condensation of furil with 1,2-diaminobenzene or 2,3-diaminopyridine and their reaction with ?-diketones) using dioxometal ion as kinetic template are reported. The prepared complexes have been characterized by molar conductance, elemental analyses, infrared and electronic data. The spectral data indicate that ligands act as tetradentate chelating agent. Due to their biological relevance, molybdenum catalyzed oxygen transfer reactions have great interest. All the dioxomolybdenum(VI) complexes have octahedral geometry with six coordination.

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