Thionolactone as Resin Additive to Prepare (bio)degradable 3D Objects via VAT Photopolymerization

3D printing and especially VAT photopolymerization leads to cross-linked materials with high thermal, chemical and mechanical properties. Nevertheless, such stability is incompatible with degradability and re/upcyclability. We showed here that thionolactone and especially dibenzo[c,e]-oxepane-5-thione (DOT) could be used as an additive (2 wt%) to acrylate-based resins to introduce weak bonds into the network via a radical ring-opening polymerization process. The low amount of additive allows to only slightly modify the printability of the resin, keep intact its resolution and maintain the mechanical properties of the 3D object. The resin with additive was used in UV microfabrication and 2-photon stereolithography setup and commercial 3D printers. The fabricated objects were shown to degrade in basic solvent as well in a home-made compost. The rate of degradation is nonetheless dependent of the size of the object. This feature was used to prepare 3D objects with support structures that could be easily solubilized.

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INVESTIGATION OF BIOPLASTIC PROPERTIES DEVELOPED FROM ACRYLATE EPOXIDIZED SOYBEAN OIL THROUGH RING OPENING POLYMERIZATION PROCESS

Journal of Chemical Engineering and Industrial Biotechnology ◽

10.15282/jceib.v1i1.3718 ◽

1970 ◽

Vol 1 (1) ◽

pp. 29-41 ◽

Cited By ~ 1

Author(s):

Hiew Ming Yu ◽

Arun Gupta ◽

Ritu Gupta ◽

Saad Bala Husain

Keyword(s):

Mechanical Properties ◽

Soybean Oil ◽

Ring Opening ◽

Unsaturated Fatty Acids ◽

Ring Opening Polymerization ◽

Epoxidized Soybean Oil ◽

Polymerization Process ◽

Synthesis And Characterization ◽

Glycerol Concentration

Soybean oil is one of the major vegetable oils containing more than 99% of triglycerides of saturated and unsaturated fatty acids and has become an interesting source to produce bioplastic. This study investigates the synthesis and characterization of bioplastic developed by the acrylate epoxidized soybean oil through ring opening polymerization process. The mechanical properties of the samples were characterized using Fourier Transform Infrared Spectroscopy, Thermogravimetric analysis and the physio-chemical properties of the bioplastics were studied. In this study, the bioplastic made up from soybean oil with the lowest glycerol concentration showed the best mechanical properties.

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Radical ring‐opening polymerization of lipoates: Kinetic and thermodynamic aspects

Journal of Polymer Science ◽

10.1002/pol.20200765 ◽

2021 ◽

Vol 59 (8) ◽

pp. 675-684

Author(s):

Mojdeh Raeisi ◽

Nicolay V. Tsarevsky

Keyword(s):

Ring Opening ◽

Ring Opening Polymerization ◽

Radical Ring

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Amino-Functionalized Multiwalled Carbon Nanotubes Lead to Successful Ring-Opening Polymerization of Poly(ε-caprolactone): Enhanced Interfacial Bonding and Optimized Mechanical Properties

ACS Applied Materials & Interfaces ◽

10.1021/acsami.5b03693 ◽

2015 ◽

Vol 7 (21) ◽

pp. 11683-11694 ◽

Cited By ~ 17

Author(s):

Eleftheria Roumeli ◽

Dimitrios G. Papageorgiou ◽

Vasilios Tsanaktsis ◽

Zoe Terzopoulou ◽

Konstantinos Chrissafis ◽

...

Keyword(s):

Mechanical Properties ◽

Carbon Nanotubes ◽

Multiwalled Carbon Nanotubes ◽

Ring Opening ◽

Ring Opening Polymerization ◽

Interfacial Bonding ◽

Multiwalled Carbon ◽

Functionalized Multiwalled Carbon Nanotubes

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A super-toughened nylon 12 blends via anionic ring-opening polymerization of lauryllactam in a twin screw extruder. Preparation, morphology, and mechanical properties

Polymer Engineering & Science ◽

10.1002/pen.21640 ◽

2010 ◽

Vol 50 (6) ◽

pp. 1178-1185 ◽

Cited By ~ 7

Author(s):

Libo Du ◽

Guisheng Yang

Keyword(s):

Mechanical Properties ◽

Ring Opening ◽

Ring Opening Polymerization ◽

Twin Screw Extruder ◽

Screw Extruder ◽

Nylon 12 ◽

Twin Screw ◽

Anionic Ring ◽

Morphology And Mechanical Properties

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TiCp2Cl-Catalyzed Living Radical and Ring Opening Polymerizations Initiated from Epoxides and Aldehydes in the Synthesis of Linear, Graft and Branched Polymers

MRS Proceedings ◽

10.1557/proc-856-bb11.9 ◽

2004 ◽

Vol 856 ◽

Cited By ~ 3

Author(s):

Alexandru D. Asandei ◽

Isaac W. Moran ◽

Gobinda Saha ◽

Yanhui Chen

Keyword(s):

Electron Transfer ◽

Ring Opening ◽

Glycidyl Methacrylate ◽

Ring Opening Polymerization ◽

Branched Polymers ◽

Single Electron Transfer ◽

Radical Ring ◽

Polymer Architectures ◽

Complex Polymer

ABSTRACTTi(III)Cp2Cl-catalyzed radical ring opening (RRO) of epoxides or single electron transfer (SET) reduction of aldehydes generates Ti alkoxides and carbon centered radicals which add to styrene, initiating a radical polymerization. This polymerization is mediate in a living fashion by the reversible termination of growing chains with the TiCp2Cl metalloradical. In addition, polymers or monomers containing pendant epoxide groups (glycidyl methacrylate) can be used as substrates for radical grafting or branching reactions by self condensing vinyl polymerization. In addition, Ti alkoxides generated in situ by both epoxide RRO and aldehyde SET initiate the living ring opening polymerization of ε-caprolactone. Thus, new initiators and catalysts are introduced for the synthesis of complex polymer architectures.

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