scholarly journals Synthesis and Characterization of Cassava Shell Based Biodegradable Plastic with Kitosan Addition

2017 ◽  
Vol 3 (1) ◽  
pp. 198
Author(s):  
Supriyono Supriyono ◽  
Hamdan Hadi Kusuma ◽  
Mulyatun Mulyatun ◽  
Biaunik Niski Kumila
Keyword(s):  
Functional Group ◽  
Mechanical Test ◽  
Decomposition Process ◽  
Biodegradable Plastic ◽  
Synthesis And Characterization ◽  
Plastic Properties ◽  
Organic Functional Group ◽  
Elongation Percentage ◽  
Biodegradability Test

<p style="text-align: justify;">Wasted-plastic which is a hardly-decomposed material was one of the major problems of trash-recycling management in Indonesia. Replacing a common plastic with biodegradable plastic was one of the solution to reduce the amount of undecomposed-materials in the enviroment. Therefore, the aim of this resarch is to study how to synthesis cassava shell based biodegradable plastic and to analyse the effect of kitosan addition on cassava shell based biodegradable plastic properties. There are three basic characterization processes performed to analyse the sample properties, i.e mechanical test, FTIR and biodegradability test. Kitosan enhanced the mechanical and biodegradability properties of samples. The elongation-percentage decreased down to 8,57% along with the increasing the amount of kitosan concentration. FTIR data indicated the presence of O-H, N-H, C-H, C=C, NO2 and C-O organic functional group on biodegradable plastic samples. Kitosan reduce the decomposition process of samples due to its hydrophilicity. Sample with highest concentration of kitosan decomposed at the longest time up to 14 days. . ©2017 JNSMR UIN Walisongo. All rights reserved.</p>

Synthesis and Characterization of Bio-Based Rigid Polyurethane Foams with Varying Amount of Blowing Agent

2019 ◽  
Vol 803 ◽  
pp. 346-350
Author(s):  
Jessalyn C. Grumo ◽  
Lady Jaharah Y. Jabber ◽  
Arnold A. Lubguban ◽  
Rey Y. Capangpangan ◽  
Arnold C. Alguno
Keyword(s):  
Polyurethane Foam ◽  
Functional Group ◽  
Polyurethane Foams ◽  
Synthesis And Characterization ◽  
Rigid Polyurethane Foam ◽  
Sem Images ◽  
Average Cell Size ◽  
Average Cell ◽  
Blowing Agent

We report on the rigid polyurethane foam (RPUF) with varying amount of blowing agent. The effects of blowing agent in the formation of polyurethane will be characterized using scanning electron microscopy (SEM) and fourier transform infrared (FTIR) spectroscopy. SEM images revealed that varying the amount of blowing agent will significantly change the surface morphology of the resulting RPUF. The average cell size of the RPUF increases with increasing amount of blowing agent. Moreover, FTIR results revealed the presence of functional group related to formation of urethane bonds such as N-H, C=O, C=N and C-O-C stretching suggesting that polyurethane foam was successfully synthesized. This simple and straightforward process of RPUF using water as blowing agent will be economical.

A Newβ-Diketiminate Ligand Carrying a Functional Group on the Carbon Framework. Synthesis and Characterization of a Linear Polymeric Copper(I) Complex

2001 ◽  
Vol 40 (21) ◽  
pp. 5316-5317 ◽  
Author(s):  
Seiji Yokota ◽  
Yoshimitsu Tachi ◽  
Nagatoshi Nishiwaki ◽  
Masahiro Ariga ◽  
Shinobu Itoh
Keyword(s):  
Functional Group ◽  
Synthesis And Characterization ◽  
Carbon Framework

scholarly journals Characterization of organic ambient aerosol during MIRAGE 2006 on three platforms

2009 ◽  
Vol 9 (15) ◽  
pp. 5417-5432 ◽  
Author(s):  
S. Gilardoni ◽  
S. Liu ◽  
S. Takahama ◽  
L. M. Russell ◽  
J. D. Allan ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Elemental Composition ◽  
Urban Area ◽  
Mexico City ◽  
Functional Group ◽  
Organic Functional Group ◽  
The City ◽  
Average Contribution ◽  
Group Concentration

Abstract. Submicron atmospheric aerosol particles were collected during the Megacity Initiative: Local and Global Research Observation (MILAGRO) in March 2006 at three platforms located in the Mexico City urban area (at the Mexico City Atmospheric Monitoring System building – SIMAT), at about 60 km south-east of the metropolitan area (Altzomoni in the Cortes Pass), and on board the NCAR C130 aircraft. Organic functional group and elemental composition were measured by FTIR and XRF. The average organic mass (OM) concentration, calculated as the sum of organic functional group concentrations, was 9.9 μg m−3 at SIMAT, 6.6 μg m−3 at Altzomoni, and 5.7 μg m−3 on the C130. Aliphatic saturated C-C-H and carboxylic acid COOH groups dominated OM (more than 60%) at the ground sites. On the C130, a non-acid carbonyl C=O, carboxylic acid COOH, and amine NH2 groups were observed in concentrations above detection limit only outside the Mexico City basin. From the elemental composition of SIMAT samples, we estimated the upper bound of average contribution of biomass burning to the organic carbon (OC) as 33–39%. The average OM/OC ratio was 1.8 at SIMAT, 2.0 at Altzomoni, and 1.6–1.8 on the C130. On the aircraft, higher OM/OC ratios were measured outside of the Mexico City basin, north of the urban area, along the city outflow direction. The average carboxylic acid to aliphatic saturated ratio at SIMAT reflected a local increase of oxidized functional group concentration in aged particles.

scholarly journals Synthesis and Characterization of Biodegradable Blend based on LDPE/cassava stem nanofiber cellulose

2021 ◽  
Vol 6 (1) ◽  
pp. 8-17
Author(s):  
L Lismeri ◽  
N Herdiana ◽  
D Kameswara ◽  
P S Anungputri ◽  
Y Darni ◽  
...  
Keyword(s):  
Organic Material ◽  
Water Resistance ◽  
Environmental Problem ◽  
Biodegradable Plastic ◽  
Synthesis And Characterization ◽  
Plastic Films ◽  
Degradation Test ◽  
Cassava Stem ◽  
Degradation Time

Conventional plastic becomes trend topic due to its long degradation time and needs attention related to environmental problem. One type of plastic that is difficult to be degraded is LDPE. Some of the efforts done is to synthesize plastics with organic material so that it becomes biodegradable plastic. Cellulose is an organic material that is abundant in nature and can be used as a filler. This research aims to synthesis the biodegradable plastic films composted by nanocellulose – LDPE. Mechanical (UTM), water resistance and degradation test has been done. The properties of the biodegradable blend still meet the commercial LDPE standart. Even though the biocomposite based on LDPE-nanofiber cellulose can not totally degradable but it is can be used as a solution to reduce the degradation time of a plastic waste.

Design, synthesis and characterization of a new blue phosphorescent Ir complex

2015 ◽  
Vol 3 (33) ◽  
pp. 8675-8683 ◽  
Author(s):  
Chuang Yao ◽  
Jingxian Li ◽  
Jinshan Wang ◽  
Xinjun Xu ◽  
Ronghua Liu ◽  
...  
Keyword(s):  
Functional Group ◽  
Alkyl Chain ◽  
Synthesis And Characterization ◽  
Design Synthesis ◽  
Blue Phosphorescent

An efficient phosphorescent dye was developed by grafting a typically used phosphor to a functional group with an alkyl chain to suppress the phase aggregation.

Synthesis and characterization of new square planar heteroleptic cationic complexes [Ni(ii) β-oxodithioester-dppe]+; their use as a catalyst for Chan–Lam coupling

2020 ◽  
Vol 44 (28) ◽  
pp. 12143-12153
Author(s):  
Kavita Kumari ◽  
Saurabh Kumar ◽  
Krishna Nand Singh ◽  
Michael G. B. Drew ◽  
Nanhai Singh
Keyword(s):  
Functional Group ◽  
Coupling Reaction ◽  
Synthesis And Characterization ◽  
Square Planar

Six new structurally characterized heteroleptic cationic [Ni(ii) β-oxodithioester-dppe]+PF6− complexes as efficient catalysts for Chan–Lam coupling reaction affording N-arylated products with significant functional group tolerance.

Synthesis and characterization of acrylate copolymer containing fluorescein functional group

2013 ◽  
Vol 30 (8) ◽  
pp. 1609-1613 ◽  
Author(s):  
Guodong Hui ◽  
Weiyun Huang ◽  
Yunzhao Song ◽  
Deben Chen ◽  
Anyong Zhong
Keyword(s):  
Functional Group ◽  
Synthesis And Characterization ◽  
Acrylate Copolymer
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