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10 protocols using 2 ethylhexyl acrylate

1

Multifunctional Photocurable Polymer Coatings

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2-Ethylhexyl acrylate (EHA),
isobornyl acrylate (IBOA), trimethylolpropane triacrylate (TMPTA),
a photoinitiator; diphenyl (2,4,6-trimethyl benzoyl)-phosphine oxide/2-hydroxy-2-methyl
propiophenone (blend), beta carotene (synthetic, ≥93% (UV),
powder), tartrazine (dye content ≥85%), 3-(trimethoxysilyl)propyl
methacrylate, tin (II) chloride (SnCl2), palladium (II)
chloride (PdCl2), boric acid (H3BO3), and ∼37% hydrochloric acid (HCl) were all purchased from
Sigma-Aldrich. The surfactant Hypermer B246-SO-M was donated by Croda.
Electroless nickel plating solutions (Part A and Part B) were purchased
from Caswell UK.
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2

Preparation of Styrene-Acrylate Nanocomposite

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Styrene (97%, Acros Organics) and 2-ethylhexyl acrylate (98%, Sigma-Aldrich) were purchased and purified by passing through basic aluminium oxide before usage as a monomer. BlocBuilder MA (Nitroxide initiator, Arkema) was supplied and used as received. All solvents including toluene, methanol, acetone, and chloroform used were in analytical grade. The MWCNTs (498% carbon basis, Sigma-Aldrich, O.D.  L 6-13 nm  2.5-20 mm) were used as a dispersion in chloroform. Before use, the conductive nanotubes were vigorously dispersed in an ultrasonic bath for 4 h.
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3

Synthesis of Copolymer Photoreactive Films

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The monomers isobornyl methacrylate (technical grade) and 2-ethylhexyl acrylate (98%), the photoinitiator (PI) 2-hydroxy-2-methylpropiophenone (97%), and the thermal initiator 2,2′-azobis(2-methylpropionitrile) (AIBN, 98%) were provided by Sigma-Aldrich. Chloroform (99.5%), methanol (99.8%), and tetrahydrofuran (THF, 99.8%) were supplied by Fisher Chemical. 1-Dodecanethiol (98%), provided by Sigma-Aldrich, was used as a chain transfer agent. All commercial products were used as received. Base paper (Navigator, 70 g/m2) was provided by The Navigator Company (Portugal). Ultrapure water (Type 1, 18.2 MΩ·cm at 25 °C) was obtained via a Simplicity Water purification system (Merck, Darmstadt, Germany).
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4

Hydrophobic Acrylic PSA Synthesis

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2-Ethylhexyl acrylate (EHA, 98%), isobornyl acrylate (IBOA), 2-hydroxyethyl acrylate (HEA, 96%), PVA, HA, and isophorone diisocyanate (IPDI, 98%) were purchased from Sigma Aldrich (Seoul, Korea). Irgacure 184 and darocur TPO (photoinitiators) were purchased from Shinyoung Rad Chem (Seoul, Korea). 1-dodecanethiol (98%), a chain transfer agent, was purchased from Alfa Aesar. SA3000, a commercial acrylic PSA with hydrophobicity (Mw: 700,000–800,000 g/mol, contact angle: 95.19°), was purchased from Samwha Co., (Seoul, Korea) All materials were used without further purification.
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5

Synthesis and Characterization of Polymeric Drug Delivery System

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All chemical reagents used for the study were of analytical grade or above, purchased from commercial suppliers and used without further purification unless otherwise mentioned. Orlistat (≥98%), N-(3-Dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (EDC), N-hydroxysuccinimide (NHS), 4-dimethylaminopyridine (DMAP) and diisopropylethylamine (DIPEA), 2-hydroxyethylacrylate (HEA), 2-ethylhexyl acrylate (EHA), Azobisisobutyronitrile (AIBN), copper(I) bromide, triethyl amine (Et3N), 1,4-dioxane and RAFT-agent were obtained from Sigma Aldrich (St. Louis, MO, USA). Cell culture media, fetal bovine serum (FBS), antibiotics streptomycin and penicillin (PS) were purchased from Invitrogen (Carlsbad, CA, USA). MDA-MB-231 and SkBR3 breast cancer cell lines, and HeLa ovarian cancer cells were purchased from American type culture collection (ATCC) (Manassas, VA, USA) between 2012 and 2013. MCF10A breast fibroblast cells were purchased American type culture collection (ATCC) (Manassas, VA, USA) in 2015. All cell lines were authenticated by short tandem repeat DNA profiling by Genetica-DNA laboratories (Labcorp, Burlington, NC). The cell lines were used for less than 40 passages. Cell lines were routinely tested for mycoplasma contamination.
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6

Synthesis and Characterization of Polymeric Microspheres

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The monomers 2-ethylhexyl acrylate (EHA; 98%) and 2-ethylhexyl methacrylate (EHMA; 98%), cross-linker ethylene glycol dimethacrylate (EGDMA; 98%), initiator sodium persulfate (NaPS; 98%), sodium chloride (NaCl; 99%), surfactants dimethyldioctadecylammonium bromide (DODAB; 98%) and Span 80, hydrochloric acid (HCl; 37%), and ciprofloxacin were purchased from Sigma-Aldrich and used as received. The alcohol 2-propanol (IPA; 99.5%) was obtained from Fisher Scientific. Superffin infiltration media was purchased from Source Medical Products. Fluoresbrite YO Carboxylate 0.50-μm microspheres and Fluoresbrite YG 25-μm microspheres were ordered from Polysciences, Inc. Polymeric microspheres (polystyrene divinyl benzene, diameter 1–15 μm) were obtained from Duke Scientific Corporation.
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7

Synthesis of Modified Lignin-Based Polymer

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Bisphenol A glycerolate (1 glycerol/phenol) diacrylate, butyl acrylate, 2-ethylhexyl acrylate, styrene, kraft lignin, α,α’-Azoiso-bis-butyronitrile (AIBN), and 2,2-dimethoxy-2-phenylacetophenone were obtained from Sigma-Aldrich. Modified lignin was obtained according to the procedure described in [48 (link)]. Briefly, the lignin sample and methylene chloride were placed in an ice bath with triethylamine and stirred. Methacryloyl chloride was then added dropwise, and the reaction was allowed to proceed for 1 h at 5 °C and for an additional hour at room temperature. The obtained material was filtered off, washed three times with water to remove trimethylamine hydrochloride, and extracted with methylene chloride.
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8

Synthesis of Acrylate and Amine Monomers

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Material Benzylalcohol (≥99%), benzylacrylate (≥99%, contains hydroquinone monomethyl ether (MEHQ) as inhibitor), bisphenol A glycerolate (1 glycerol/phenol) diacrylate (contains 250-500ppm MEHQ as inhibitor), n-butylamine (≥99%), dibutylamine (≥99%), N,Ndiisopropylethylamine (DIPEA, ≥99%) 2-ethylhexylacrylate (98%, contains MEHQ as inhibitor), 2-ethylhexylamine (98%), N-methylbutylamine (≥98%), pentaerythritol triacrylate (PTA, technical grade, contains 600ppm MEHQ as inhibitor), trimethylolpropane triacrylate (TMPTA, technical grade, contains 300-400ppm MEHQ as inhibitor), n-octylamine (99%), were purchased from Sigma-Aldrich. Tetrahydrofuran (THF), and n-hexane were purchased from Acros Organics.
4,4′-methylenebis(cyclohexylamine) (MBCA, >98%) was purchased from TCI. Jeffamine D2000 was kindly provided by Huntsman, and Priamine 1074 was kindly provided by Croda. All reagents were used without further purification unless stated otherwise.
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9

Chemical Reagent Acquisition and Purification

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Dichloromethane and anhydrous sodium sulfate were purchased from VWR (Darmstadt, Germany). All chemicals were at least of analytical grade. To improve its purity, DCM was freshly distilled prior to use. Acetic acid, benzaldehyde, sec-butylbenzene, 1-butanol, (E)-2-butenal, butyl acrylate, decanal, ethenylbenzene (styrene), 2-ethylhexyl acrylate, methyl octanoate, 1-methylnaphthalene, 2-methylnaphthalene, naphthalene, octanal and propylbenzene were obtained from Sigma-Aldrich (Steinheim, Germany). Butyl acetate, ethylbenzene, (propan-2-yl)benzene (cumene) and 3-phenyl-1-propene (allylbenzene), were purchased from TCI Europe (Zwijndrecht, Belgium). 1,2-Dimethylnaphthalene, 1,7-dimethylnaphthalene and 3-methyl-4-heptanone were obtained from abcr (Karlsruhe, Germany), and 2-acetyl-1-pyrroline from aromaLAB (Planegg, Germany).
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10

Polymer-Stabilized Bistable Photonic

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The precursor of the polymer-stabilized BP, designated as M5, is composed of 54.8 wt% HTW114200-050, 36.5 wt% R811, 4.0 wt% mesogenic cross-linker RM257 (from HCCH), 4.0 wt% 2-ethylhexyl acrylate (from Sigma-Aldrich), and 0.7 wt% photoinitiator Irgacure 651 (from BASF), showing a phase sequence of ISO-(38.1 °C)-BPII-(34.5 °C)-BPI-(27.0 °C)-N*. The precursor was infiltrated into a 12 μm-thick cell and subsequently exposed to ultraviolet light (XLite380, OPAS; centered at λ = 365 nm) with an intensity of 20 mW cm−2 for 60 min to ensure complete polymerization. The PSBP turns from ISO to BPI at ~ 37.0 °C, and it is well stabilized in the BPI even when the ambient temperature plummets to 13.0 °C (the lower limit of our experimental condition).
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