| NMR | nuclear magnetic resonance |
| MALDI-TOF MS | matrix assisted laser desorption ionization time of flight mass spectrometry |
| nylon 4Me | methyl 4-aminobutyrate hydrochloride |
| nylon 4Et | ethyl 4-aminobutyrate hydrochloride |
| nylon 3Me | β-alanine methyl ester hydrochloride |
| nylon 3Et | β-alanine ethyl ester hydrochloride |
| nylon 6Me | methyl 6-aminohexanoate hydrochloride |
| nylon 1Et | ethyl carbamate |
| glu(Et)2 | l-glutamic acid diethyl ester hydrochloride |
| oligo(GluEt) | oligo(glutamic acid-γ-ethyl ester) |
| DP | degree of polymerization |
| HABA | 2-(4-hydroxyphenylazo)benzoic acid |
| Na-TFA | sodium trifluoroacetate |
| DMSO-d6 | dimethyl sulfoxide-d6 |