Biodegradable Hyperbranched Epoxy from Castor Oil-Based Hyperbranched Polyester Polyol

2013 ◽  
Vol 2 (3) ◽  
pp. 445-453 ◽  
Author(s):  
Bibekananda De ◽  
Kuldeep Gupta ◽  
Manabendra Mandal ◽  
Niranjan Karak
Keyword(s):  
Castor Oil ◽  
Hyperbranched Polyester ◽  
Polyester Polyol

Carbazole-Based Hyperbranched Polyester Polyol: Structural, Rheological, Thermal and Optical Properties

2021 ◽  
Vol 29 (4) ◽  
pp. 257-266
Author(s):  
Edwin A. Murillo ◽  
Margarita Cerón ◽  
M. Judith Percino
Keyword(s):  
Optical Properties ◽  
Hyperbranched Polyester ◽  
Polyester Polyol

Thermal transitions in hyperbranched polyester-polyol assemblies on carbon

2018 ◽  
Vol 102 ◽  
pp. 68-74 ◽  
Author(s):  
E.D. Farias ◽  
M.C.G. Passeggi ◽  
V. Brunetti
Keyword(s):  
Hyperbranched Polyester ◽  
Thermal Transitions ◽  
Polyester Polyol

Superparamagnetic Cobalt Nanoparticles in Hyperbranched Polyester Polyol matrix with Anti-Protease Activity

2021 ◽  
pp. 168808
Author(s):  
Artur A. Khannanov ◽  
Anastasia A. Rossova ◽  
Klara A. Ignatyeva ◽  
Nikolay A. Ulakhovich ◽  
Alexander V. Gerasimov ◽  
...  
Keyword(s):  
Protease Activity ◽  
Cobalt Nanoparticles ◽  
Hyperbranched Polyester ◽  
Polyester Polyol

scholarly journals Magnetic Cobalt and Cobalt Oxide Nanoparticles in Hyperbranched Polyester Polyol Matrix

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
O. I. Medvedeva ◽  
S. S. Kambulova ◽  
O. V. Bondar ◽  
A. R. Gataulina ◽  
N. A. Ulakhovich ◽  
...  
Keyword(s):  
Magnetic Hysteresis ◽  
Average Diameter ◽  
Physicochemical Characteristics ◽  
Blocking Temperature ◽  
Zero Field ◽  
Hyperbranched Polyester ◽  
Polyester Polyol ◽  
Cobalt Oxide Nanoparticles ◽  
Ft Ir ◽  
Co Nanoparticles

A series of cobalt (Co) and its oxides based nanoparticles were synthesized by using hyperbranched polyester polyol Boltorn H20 as a platform and sodium borohydride as a reducing agent. UV, FT-IR, XRD, NTA, and TEM methods were employed to obtain physicochemical characteristics of the products. The average diameter of Co nanoparticles was approximately 8.2±3.4 nm. Their magnetic properties, including hysteresis loop, field-cooled, and zero field-cooled curves were investigated. The nanoparticles exhibit superparamagnetism at room temperature, accompanied by magnetic hysteresis below the blocking temperature.

Hyperbranched polyester polyol modified with polylactic acid

2014 ◽  
Vol 132 (10) ◽  
pp. n/a-n/a ◽  
Author(s):  
Ricardo Mesias ◽  
Edwin A. Murillo
Keyword(s):  
Polylactic Acid ◽  
Hyperbranched Polyester ◽  
Polyester Polyol

Castor oil based hyperbranched polyester/bitumen modified fly ash nanocomposite

2016 ◽  
Vol 4 (1) ◽  
pp. 15-29 ◽  
Author(s):  
Deepshikha Bhagawati ◽  
Suman Thakur ◽  
Niranjan Karak
Keyword(s):  
Fly Ash ◽  
Castor Oil ◽  
Hyperbranched Polyester ◽  
Modified Fly Ash

scholarly journals Structural, thermal, rheological, morphological and mechanical properties of thermoplastic starch obtained by using hyperbranched polyester polyol as plasticizing agent

DYNA ◽  
2018 ◽  
Vol 85 (206) ◽  
pp. 178-186 ◽  
Author(s):  
Manuel Guzmán ◽  
Edwin A. Murillo
Keyword(s):  
Mechanical Properties ◽  
Thermoplastic Starch ◽  
Hyperbranched Polyester ◽  
Polyester Polyol

En este trabajo, se evaluó el efecto de la proporción de un poliéster poliol altamente ramificado (HBP) de cuarta generación en las propiedades estructurales, térmicas, reológicas, morfológicas y mecánicas de mezclas de almidón de yuca/HBP (TPS). Para este propósito las relaciones de almidón:HBP empleadas para preparar los TPS fueron: 30:70 (TPS30), 40:60 (TPS40) and 50:50 (TPS50). Por análisis infrarrojo (IR) se observó que la presencia de HBP produjo un desplazamiento en las absorciones de los enlaces C-OH, C-O and C-O-C del TPS. El análisis de difracción de rayos X mostró que la cristalinidad del almidón es tipo A y B, las cuales incrementaron con la cantidad de HBP. La temperatura de transición vítrea (Tg) de los TPS, incrementó con el contenido de HBP, pero la estabilidad térmica y la viscosidad (a una frecuencia angular de 1 Hz) presentaron un comportamiento opuesto. El análisis de microscopia de barrido electrónica (SEM), reveló que la estructura granular del almidón no fue completamente desestructurada.

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