Smart hinges fabricated using three-dimensional (3D) printing have been accepted in the aerospace, robotics, and biomedical fields since these devices possess a shape memory characteristic. Shape polymers (SMPs) are preferred materials for creating smart due to their ability achieve programmable complex geometries. However, fabricating SMPs with embedded components remains challenge constraints...

Two-photon polymerization (2PP) is a high-resolution 3D-printing technology with very rapidly expanding field of applications, including tissue engineering (TE). In this field, 2PP offers unprecedented possibilities for systematic studies both cell–cell and cell–material interactions in 3D. For TE the reliable production biodegradable micro-scaffolds porous, complex architectures essential. How...

In the last decades importance of UV curable formulations has increased continuously. Their fast curing speed, solvent-free polymerization conditions, and formation hard highly crosslinked photopolymer networks represent major benefits. Commercial resins generally consist multi-functional vinyl oligomers, photoinitiators, additives, reactive diluents. Mono- diluents serve as thinners to lower o...

In response to present and future fossil resource depletion, chemicals production from an alternate raw materials base must be considered. The biologically catalysed degradation of photos:ynthetically stored energy, such as starch and ligno-cellulosics, is an important approach for chemicals production. The objective of this study is to increase the productivity of acrylate from propionate, usi...

In the study, the possible effect of sodium valproate (NaVP) on urethane-induced lung tumors in mice has been evaluated. BALB/c mice (n = 120; 4-6 weeks old, both sexes) were used in the following groups: 1) urethane-treated, 2) urethane-NaVP-treated, 3) only NaVP-treated, 4) control. In the same groups, castrated male mice (n = 48) were investigated. Urethane was given by intraperitoneal injec...

Acrylonitrile (ACN) is a petroleum-derived compound used in resins, polymers, acrylics, and carbon fiber. We present a process for renewable ACN production using 3-hydroxypropionic acid (3-HP), which can be produced microbially from sugars. The process achieves ACN molar yields exceeding 90% from ethyl 3-hydroxypropanoate (ethyl 3-HP) via dehydration and nitrilation with ammonia over an inexpen...

Research in urethane-acrylate UV-curables has shown that these materials have mechanical properties inferior to those of thermoplastic polyurethanes with very similar composition owing to the high cross-link density in UV-curables; in particular, their ultimate extension is low (less than 100%). Past attempts a t increasing the ultimate extension involved compromising the advantages of the UV-c...

Waterborne isocyanate-free grafted poly(hydroxy urethane)-poly(butyl methacrylate) hybrid dispersions were synthesized by miniemulsion polymerization. Grafting was induced including methacrylate functionalities in the urethane) and controlled degree of functionalization. It is shown that grafting enabled a fine tuning mechanical properties PHU containing hybrids.

An extension of the transferable potentials for phase equilibria-united atom (TraPPE-UA) force field to acrylate and methacrylate monomers is presented. New parameters were fit to the liquid density, normal boiling point, saturated vapor pressure, and (where experimentally available) critical constants of 1,3-butadiene, isoprene, methyl acrylate, and methyl methacrylate using Gibbs ensemble Mon...