Synthesis and characterization of new functional polymers by polymer-analog reactions on EVOH copolymer

2000 ◽  
Vol 201 (14) ◽  
pp. 1758-1764 ◽  
Author(s):  
Stéphane Bruzaud ◽  
Guy Levesque
Keyword(s):  
Functional Polymers ◽  
Synthesis And Characterization

Synthesis and characterization of original functional polymers of tetrafluoroethylene and 4,5,5-trifluoro-4-ene pentyl acetate

2004 ◽  
Vol 42 (7) ◽  
pp. 1693-1706 ◽  
Author(s):  
George Kostov ◽  
Bruno Améduri ◽  
Bernard Boutevin ◽  
Gérard Bauduin ◽  
Maya Stankova
Keyword(s):  
Functional Polymers ◽  
Synthesis And Characterization

scholarly journals Surface Initiated ATRP: Synthesis and Characterization of Functional Polymers Grafted on Modified Cellulose Beads

2013 ◽  
Vol 13 ◽  
pp. 243-248
Author(s):  
Md Ashaduzzaman ◽  
Kei Ishikura ◽  
Masayo Sakata ◽  
Masashi Kunitake
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Ir Spectroscopy ◽  
Substrate Surface ◽  
Functional Polymers ◽  
Synthesis And Characterization ◽  
Attenuated Total Reflectance ◽  
Total Reflectance ◽  
Modified Cellulose ◽  
C Nmr

Atom transfer radical polymerization (ATRP) was employed to synthesize novel polymer particles. The surface of porous polymeric cellulose beads was modified by sodium hydroxide, 2-chloromethyloxirane, ethylenediamine and 2-bromo-2-methylpropionyl bromide successively in order to activate the beads surface so that it can play an important role as an initiator for ATRP reaction. ATRP on the modified cellulose beads surface was carried out with styrene and sodium p-styrenesulphonate monomers in the presence of non aqueous and aqueous phases respectively. The polymer products on the substrate surface were characterized by elemental analysis (EA), attenuated total reflectance-infrared (ATR-IR) spectroscopy and carbon13 – nuclear magnetic resonance (13C-NMR).

Synthesis and Characterization of Novel Functional Polymers from Hemicelluloses

2011 ◽  
Vol 295-297 ◽  
pp. 64-69
Author(s):  
Xin Wen Peng ◽  
Jun Li Ren ◽  
Lin Xin Zhong ◽  
Feng Peng ◽  
Run Cang Sun
Keyword(s):  
Thermal Stability ◽  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Maleic Anhydride ◽  
Maximum Degree ◽  
Functional Polymers ◽  
Synthesis And Characterization ◽  
Carboxyl Groups ◽  
C Nmr

Hemicellulose isolated fromDmMwas converted to novel functional biopolymers by maleylation using maleic anhydride as reactant and LiOH as catalyst. The reaction was performed under various temperatures, times, and the amounts of catalyst and maleic anhydride on the degree substitution (DS) of products were discussed. Comparison of the reaction in different media was discussed in detail. The product had the maximum degree of substitution (DS) of 0.75. Novel functional polymers containing with carbon-carbon double bond and carboxyl groups could be confirmed by13C NMR spectroscopy. The behavior of novel hemicellulosic derivatives was monitored by means of thermogravimetry (TG) and differential thermal analysis (DTA). It was found that the products with a high DS had a lower thermal stability than the native hemicelluloses.

Synthesis and Characterization of a New Donor and Acceptor Substituted Conjugated Polytetraphenylethenes

2013 ◽  
Vol 699 ◽  
pp. 167-169
Author(s):  
Jia Hai Ye
Keyword(s):  
1H Nmr ◽  
Wittig Reaction ◽  
Functional Polymers ◽  
Uv Absorption ◽  
Synthesis And Characterization ◽  
Donor Group ◽  
Polymer Backbone ◽  
Acceptor Group ◽  
Donor And Acceptor

A series of new functional polymers which were constituted by Tetraphenylethene(TPE) units with donor group and acceptor group conjugated to each other is synthesized through Wittig reaction. The 1H NMR measurements indicate that the cis-vinylene units exit in polymer backbone. The UV-absorption and Fluorescent emission are investigated.

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