Superhydrophobic functionalization of cutinase activated poly(lactic acid) surfaces

2017 ◽  
Vol 19 (3) ◽  
pp. 816-822 ◽  
Author(s):  
A. Ortner ◽  
A. Pellis ◽  
C. Gamerith ◽  
A. Orcal Yebra ◽  
D. Scaini ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Enzymatic Hydrolysis ◽  
Ring Opening ◽  
Superhydrophobic Surfaces ◽  
Poly Lactic Acid ◽  
Hydrolysis Of

Controlled enzymatic hydrolysis of PLA surfaces, followed by ring opening of AKD, leads to superhydrophobic surfaces (WCA >150°).

scholarly journals Synthesis and Characterization of Polyphosphazenes Modified with Hydroxyethyl Methacrylate and Lactic Acid

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Evelyn Carolina Martínez Ceballos ◽  
Ricardo Vera Graziano ◽  
Gonzalo Martínez Barrera ◽  
Oscar Olea Mejía
Keyword(s):  
Lactic Acid ◽  
Ring Opening ◽  
Room Temperature ◽  
Block Structure ◽  
Ring Opening Polymerization ◽  
Synthesis And Characterization ◽  
Poly Lactic Acid ◽  
Hydroxyethyl Methacrylate ◽  
H Nmr

Poly(dichlorophosphazene) was prepared by melt ring-opening polymerization of the hexachlorocyclotriphosphazene. Poly[bis(2-hydroxyethyl-methacrylate)-phosphazene] and poly[(2-hydroxyethyl-methacrylate)-graft-poly(lactic-acid)-phosphazene] were obtained by nucleophilic condensation reactions at different concentrations of the substituents. The properties of the synthesized copolymers were assessed by FTIR,1H-NMR and31P-NMR, thermal analysis (DSC-TGA), and electron microscopy (SEM). The copolymers have a block structure and show twoTg's below room temperature. They are stable up to a temperature of 100°C. The type of the substituents attached to the PZ backbone determines the morphology of the polymers.

Surface-Modified Cellulose Nanofibers-graft-poly(lactic acid)s Made by Ring-Opening Polymerization of l-Lactide

2019 ◽  
Vol 27 (4) ◽  
pp. 847-861 ◽  
Author(s):  
Chaniga Chuensangjun ◽  
Kyohei Kanomata ◽  
Takuya Kitaoka ◽  
Yusuf Chisti ◽  
Sarote Sirisansaneeyakul
Keyword(s):  
Lactic Acid ◽  
Ring Opening ◽  
Cellulose Nanofibers ◽  
Ring Opening Polymerization ◽  
Poly Lactic Acid ◽  
Surface Modified ◽  
Modified Cellulose

Hydrolysis of poly(lactic acid) into calcium lactate using ionic liquid [Bmim][OAc] for chemical recycling

2014 ◽  
Vol 110 ◽  
pp. 65-70 ◽  
Author(s):  
Xiuyan Song ◽  
Hui Wang ◽  
Xuequn Yang ◽  
Fusheng Liu ◽  
Shitao Yu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Lactic Acid ◽  
Calcium Lactate ◽  
Poly Lactic Acid ◽  
Chemical Recycling ◽  
Hydrolysis Of

Zinc oxide nanoparticles catalyze rapid hydrolysis of poly(lactic acid) at low temperatures

2013 ◽  
Vol 131 (11) ◽  
pp. n/a-n/a ◽  
Author(s):  
Meng Qu ◽  
Huilin Tu ◽  
Miranda Amarante ◽  
Yi-Qiao Song ◽  
S. Sherry Zhu
Keyword(s):  
Zinc Oxide ◽  
Lactic Acid ◽  
Low Temperatures ◽  
Zinc Oxide Nanoparticles ◽  
Poly Lactic Acid ◽  
Oxide Nanoparticles ◽  
Rapid Hydrolysis ◽  
Hydrolysis Of

Preparation of Anti-Fouling Poly(Lactic Acid)(PLA) Hollow Fiber Membranes via Non-Solvent Induced Phase Separation

2014 ◽  
Vol 884-885 ◽  
pp. 112-116
Author(s):  
Peng Shen ◽  
Kai Tu ◽  
Chang Yu Yang ◽  
Jian Li ◽  
Ru Xu Du
Keyword(s):  
Contact Angle ◽  
Lactic Acid ◽  
Phase Separation ◽  
Block Copolymer ◽  
Water Permeability ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Hollow Fibers ◽  
Poly Lactic Acid ◽  
Bsa Rejection

Anti-fouling PLA hollow fibers were fabricated using synthesized PLA-PEG-PLA copolymer as an additive to improve the hydrophilicity. The tri-block copolymer was prepared by ring-opening polymerization and a hydrophilic copolymer processing good compatibility with PLA molecule was obtained and utilized to fabricate membrane with PLA by NIPS. Elemental analysis showed that PLA-PEG-PLA could stably exist in membranes and endow the membrane with persistent hydrophilic. Thus the contact angle decreased nearly 20o with 5% PLA-PEG-PLA content, resulting in higher water permeability and BSA rejection which indicated the anti-fouling property of PLA membrane was improved.

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