Cinnamoyl chloride

Isosorbide, 4-nitrobenzoyl chloride, aniline, and p-aminobenzoic acid were purchased from Sigma-Aldrich. Cinnamoyl chloride and N,N-di(hydroxyethyl)aniline were purchased from Alfa Aesar. Diglycidyl ether of bisphenol-A (MW = 392) was purchased as a commercial product from Shell Company. Deionized water (resistivity > 18.25 MΩ cm) was obtained from a Millipore water purification system. Glass slides were treated with the H₂SO₄/30% H₂O₂ (7 : 3) mixture (caution: this solution is extremely corrosive) for 3 h, rinsed with acetone and washed with plenty of deionized water for several times. Unless otherwise stated, all chemicals and solvents were purchased commercially and used directly without further purification. The synthesis and characterization details of BP-AZ-CA and IAC-4 have been reported in the previous articles,^{34,54 (link)} which can also be seen in the ESI.†

1,4-Cyclo-hexanediol, cinnamoyl chloride, pyridinium chlorochromate (PCC), triethylamine (TEA), 3-chloroperoxybenzoic acid (m-CPBA), ε-caprolactone, tin(ii) 2-ethylhexanoate (Sn(Oct)₂) and anhydrous toluene were purchased from Alfa Aesar and used as received. All other reagents and solvents were purchased from Aldrich and used without further purification. Organic spherical gold nanoparticles (AuNS) 20 nm in diameter and a with maximal absorption at 520 nm along with organic gold nanorods (AuNR) 10 nm in diameter and 41 nm in length (aspect ratio ∼4) and with maximal absorption at 808 nm were purchased from Nanopartz and used as received.