Synthesis and Characterization of Soybean Oil Based Unsaturated Polyester Resin

2011 ◽  
Vol 393-395 ◽  
pp. 349-353 ◽  
Author(s):  
Yan Qin ◽  
Jin Rong Jia ◽  
Liang Zhao ◽  
Zhi Xiong Huang ◽  
Shi Wei Zhao ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Nmr Spectroscopy ◽  
Soybean Oil ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Average Molecular Weight ◽  
Side Reaction ◽  
Unsaturated Polyester Resin

A novel soybean oil monoglyceride based unsaturated polyester resin (SOMGUPR) was prepared using two step polymerization with soybean oil,glycerol,1.2-propanediol,maleric anhydride and phthalic anhydride. FT-IR spectroscopy ,Gel Permeation Chromatography (GPC) and 1H-NMR spectroscopy were employed to study the chemical structure and molecular weight of this unsaturated polyester resin. The results show that 190°C is the optimal temperature to controll the extent of estification reaction.The number-average molecular weight(Mn) decrease with the increasing value of nglycerol:nsoybean oil in SMOGUPR.Also,the side reaction between SOMG and maleric anhydride has not occured as evidenced by 1H-NMR spectroscopy.

Novel biobased resins from blends of functionalized soybean oil and unsaturated polyester resin

2007 ◽  
Vol 45 (6) ◽  
pp. 698-704 ◽  
Author(s):  
Hiroaki Miyagawa ◽  
Amar K. Mohanty ◽  
Rigoberto Burgueño ◽  
Lawrence T. Drzal ◽  
Manjusri Misra
Keyword(s):  
Soybean Oil ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Unsaturated Polyester Resin

scholarly journals Cationic polymerization of β-pinene in the presence of alkylaluminum chlorides as catalysts

2020 ◽  
pp. 98-107
Author(s):  
Maksim I. Hulnik ◽  
Olga V. Kuharenko ◽  
Sergei V. Kostjuk
Keyword(s):  
Molecular Weight ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
Cationic Polymerization ◽  
1H Nmr Spectroscopy ◽  
Catalyst Concentration ◽  
Solvent Mixture ◽  
Electron Donors ◽  
Naturally Occurring ◽  
Molecular Weight Characteristics

Cationic polymerization of β-pinene, a naturally occurring monomer, was studied in the presence of different alkylaluminum chlorides ((iBu)3Al2Cl3, Et3Al2Cl3 и Мe2AlCl) in the solvent mixture dichloromethane/methylcyclohexane (DCM/MCH) at –78 °C. The effect of catalyst concentration [(iBu)3Al2Cl3] and various electron donors on the polymerization rat and molecular-weight characteristics of synthesized poly(β-pinenes) was investigated. Controlled cationic polymerization of β-pinene was carried out in the presence СumCl/Мe2AlCl initiating system. The polymers with controlled molecular weight up to 6400 g/mol and relatively low polydispersity (Mw/Mn < 1.42) were synthesized. Microstructure of synthesized poly(β-pinene) was investigated by 1H NMR spectroscopy.

scholarly journals Structural and Thermal Characterization of Castor Oil Based Unsaturated Polyester Resin

2020 ◽  
Vol 32 (7) ◽  
pp. 1763-1767
Author(s):  
A. Chowdhury ◽  
S.K. Singh ◽  
P. Anthony
Keyword(s):  
Castor Oil ◽  
1H Nmr Spectroscopy ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Thermal Characterization ◽  
Decomposition Temperature ◽  
Unsaturated Polyester Resin ◽  
Polyester Resins ◽  
Thermal Stability Of

In the present study, unsaturated polyester resins based on castor oil was synthesized. Structure elucidation of the synthesized unsaturated polyester resin was done by FTIR and 1H NMR spectroscopy. Thermogravimetric analysis was used to evaluate the thermal stability of cured unsaturated polyester resin. Thermogram plot was further utilized to calculate various other parameters such as statistic heat-resistant index (Ts) and the integral procedural decomposition temperature (IPDT). Comparable properties with respect to commercial resins were reported for the synthesized polymers

1H NMR Spectroscopy as an Effective Method for Predicting Molecular Weight of Polyaminoamine Dendrimers and Their Derivatives

2015 ◽  
Vol 20 (1) ◽  
pp. 57-68 ◽  
Author(s):  
Thi Bich Tram Nguyen ◽  
Thi Tram Chau Nguyen ◽  
Hoang Chinh Tran ◽  
Cuu Khoa Nguyen ◽  
Ngoc Quyen Tran
Keyword(s):  
Molecular Weight ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy

Study of oligomers and low molecular weight polycarbonate fractions by 13C and 1H NMR spectroscopy

1980 ◽  
Vol 22 (4) ◽  
pp. 1027-1037 ◽  
Author(s):  
Ya.G. Urman ◽  
S.G. Alekseyeva ◽  
V.V. Amerik ◽  
A.G. Balabushevich ◽  
B.M. Arshava ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Low Molecular Weight

Determination of the molecular weight of polyoxypropylenepolyols by 1H NMR spectroscopy

2010 ◽  
Vol 83 (6) ◽  
pp. 1037-1043
Author(s):  
N. Makhiyanov ◽  
D. Kh. Safin ◽  
A. S. Khachaturov
Keyword(s):  
Molecular Weight ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy

scholarly journals EVALUATION OF THE NA/NB2O5 SYSTEM IN THE TRANSESTERIFICATION OF SOYBEAN OIL FOR BIODIESEL PRODUCTION

2014 ◽  
Vol 39 (1) ◽  
pp. 35 ◽  
Author(s):  
Carlos Eduardo Garção de Carvalho ◽  
Nelson Consolin-Filho ◽  
Anelise Maria Regiani ◽  
Rogerio Antonio Sartori ◽  
Andréa Maria Duarte de Farias ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Soybean Oil ◽  
1H Nmr ◽  
Vegetable Oils ◽  
1H Nmr Spectroscopy ◽  
Heterogeneous Catalysts ◽  
Co2 Adsorption ◽  
Diesel Oil ◽  
Biodiesel Production ◽  
Structural Alterations

Biodiesel is considered an important substitute of diesel oil. Traditionally, it is obtained by the transesterification of vegetable oils with methanol or ethanol, catalyzed by NaOH or KOH. Heterogeneous catalysts have been studied with the aim at facilitating and diminishing costs with purification stages. In the present work, the Na/Nb2O5 system was evaluated on the reaction of soybean oil with ethanol. It was verified, by DRX and IR, that the niobia calcined at 500ºC and impregnated with sodium underwent greater structural alterations than that treated at 300°C. These modifications allowed the generation of basic properties on niobia surface (Hammett and CO2 adsorption /IR). This catalyst showed the highest conversion (30%) among the used materials. The method chosen for evaluating the catalysts yield was the 1H NMR spectroscopy.

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