scholarly journals Green Plastics: Poly-lactic Acid Synthesis from Waste Tamarind Seed Powder and its Applications

2017 ◽  
Vol Volume-1 (Issue-5) ◽  
pp. 686-691
Author(s):  
Dr. R. P. Ugawekar ◽  
Payal N. Bhautik ◽  
Kuldeep Singh ◽  
Keyword(s):  
Lactic Acid ◽  
Acid Synthesis ◽  
Poly Lactic Acid ◽  
Tamarind Seed ◽  
Green Plastics

scholarly journals Scale-Up of Polymerization Process of Biodegradable Polymer Poly(lactic acid) Synthesis Using Direct Polycondensation Method

2015 ◽  
Vol 3 (2) ◽  
pp. 100-109
Author(s):  
Sommai Pivsa-Art ◽  
Sumonman Niamlang ◽  
Weraporn Pivsa-Art ◽  
Nutchapon Santipatee ◽  
Tossamon Wongborh ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Biodegradable Polymer ◽  
Scale Up ◽  
Acid Synthesis ◽  
Polymerization Process ◽  
Poly Lactic Acid ◽  
Direct Polycondensation

scholarly journals Novel Dihydroxy-Containing Ammonium Phosphate Based Poly(Lactic Acid): Synthesis, Characterization and Flame Retardancy

Polymers ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 871 ◽  
Author(s):  
Rong-Kun Jian ◽  
Long Xia ◽  
Yuan-Fang Ai ◽  
De-Yi Wang
Keyword(s):  
Lactic Acid ◽  
Flame Retardant ◽  
Ammonium Phosphate ◽  
Acid Synthesis ◽  
Poly Lactic Acid ◽  
Limiting Oxygen Index ◽  
Phosphorus Containing ◽  
The Matrix ◽  
Degree Of Crystallization ◽  
Thermal Stability Of

The aim of this work is to prepare flame-retardant biobased poly(lactic acid) materials through incorporating a novel flame retardant dihydroxy-containing ammonium phosphate (DAP) derived from 2-chloro-5,5-dimethyl-1,3,2-dioxaphosphinane-2-oxide (DOP) and 2-amino-2-methyl-1,3-propanediol (AMPD). Interestingly, PLA modified with only 0.5% DAP passed UL-94 V-0 rating, and possessed a limiting oxygen index (LOI) value of 24.6%, which would further increase with the increasing loading of DAP. PLA/DAP did not exhibit obviously improved results in terms of heat release rate (HRR), as the loading of DAP was relatively low. It was found that DAP showed little effect on the thermal stability of PLA and the onset decomposition temperatures of PLA and PLA/DAP blends were very close. Besides, the degree of crystallization increased because of the plasticized effect of DAP. Based on the analyses of flame-retardant mechanism of DAP, it disclosed that DAP decomposed to generate incombustible compounds, such as water and ammonia, to dilute the concentration of oxygen and fuels, and then release some phosphorus-containing fragments that could produce phosphorus-containing free radicals to interrupt free-radical reactions, and finally noncombustible melt dripping was produced so as to bring away large amount of heat and stop the feedback of heat to the matrix.

Stereoblock Poly(lactic acid): Synthesis via Solid-State Polycondensation of a Stereocomplexed Mixture of Poly(L-lactic acid) and Poly(D-lactic acid)

2005 ◽  
Vol 5 (1) ◽  
pp. 21-29 ◽  
Author(s):  
Kazuki Fukushima ◽  
Yukiko Furuhashi ◽  
Kazuaki Sogo ◽  
Shigenobu Miura ◽  
Yoshiharu Kimura
Keyword(s):  
Lactic Acid ◽  
Solid State ◽  
Acid Synthesis ◽  
Poly Lactic Acid

Bio-based triblock copolymers from natural rubber and poly(lactic acid): Synthesis and application in polymer blending

Polymer ◽  
2014 ◽  
Vol 55 (17) ◽  
pp. 4478-4487 ◽  
Author(s):  
Wannapa Chumeka ◽  
Pamela Pasetto ◽  
Jean-François Pilard ◽  
Varaporn Tanrattanakul
Keyword(s):  
Lactic Acid ◽  
Natural Rubber ◽  
Triblock Copolymers ◽  
Acid Synthesis ◽  
Poly Lactic Acid ◽  
Polymer Blending

Poly-lactic acid synthesis for application in biomedical devices — A review

2012 ◽  
Vol 30 (1) ◽  
pp. 321-328 ◽  
Author(s):  
Astrid J.R. Lasprilla ◽  
Guillermo A.R. Martinez ◽  
Betânia H. Lunelli ◽  
André L. Jardini ◽  
Rubens Maciel Filho
Keyword(s):  
Lactic Acid ◽  
Acid Synthesis ◽  
Poly Lactic Acid ◽  
Biomedical Devices

Poly(lactic acid) synthesis from lactic acid obtained of the sucrose for application in bone tissue engineering

2010 ◽  
Vol 150 ◽  
pp. 97-97 ◽  
Author(s):  
G.A.R. Martinez ◽  
A.J.R. Lasprilla ◽  
B.H. Lunelli ◽  
A.L. Jardini ◽  
R. Maciel Filho
Keyword(s):  
Tissue Engineering ◽  
Lactic Acid ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Acid Synthesis ◽  
Poly Lactic Acid
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