Table 1 Summary of MWs of amphiphilic star-like P4VP-b-PtBA-b-PEO and P4VP-b-PtBA-b-PS triblock copolymers and the corresponding dimension of polymer-capped MAPbBr₃/SiO₂ core/shell NCs.

Samples	M_n,P4VP* (kg/mol)	M_n,PtBA^† (kg/mol)	M_n,PS^‡ (kg/mol)	M_n,PEO^§ (kg/mol)	PDI^§	Dimensions of MAPbBr₃/SiO₂ core/shell NCs (core diameter/shell thickness)^║ (nm)
Sample A	8000	14,600	–	5000	1.15	6.1 ± 0.3/8.9 ± 0.4
Sample B	9300	21,600	–	5000	1.18	8.0 ± 0.3/9.8 ± 0.4
Sample C	8500	13,800	5,000	–	1.19	6.8 ± 0.3/8.0 ± 0.3
Sample D	7800	15,600	10,000	–	1.19	6.0 ± 0.4/8.9 ± 0.5

*Number average MW of the inner P4VP block (M_n,P4VP) was calculated from ¹H NMR data. The calculation method was adapted from a previous work (33).

†Number average MW, M_n of each PtBA block calculated on the basis of ¹H NMR data from the MW difference between PtBA block and P4VP block. The intermediate PtBA block can be calculated by the following equation Mn,PtBA = Aa/9Ab/4 × Mn,P4VP × MtBAM4VP, where M_n,_P4VP and M_4VP are MWs of the inner P4VP block and the 4VP monomer, respectively. A_b and A_a are the integral area of the protons in the pyridine group of P4VP block and the integral area of methyl protons in the tert-butyl group of PtBA block, respectively. M_n,PtBA and M_n,P4VP are MWs of the intermediate PtBA block and the inner P4VP block, respectively. A_e and A_b are the integral area of methyl protons in the tert-butyl group of PtBA block and the integral area of protons in the pyridine group of P4VP block, respectively. M_tBA and M_4VP are MWs of the tBA monomer and the 4VP monomer, respectively.

‡Number average MW of the outer PS block was calculated from ¹H NMR data based on the following equation Mn,PS = (9×AbAa × MPtBAMtBA − 4 × MP4VPM4VP) × MSt5, where M_n,PS, M_n,PtBA, and M_n,P4VP are the MWs of the outer PS block, intermediate PtBA block, and inner P4VP block, respectively. A_a and A_b are the integral area of methyl protons in the tert-butyl group of PtBA block and the integral area of protons in the phenyl group and the pyridine group of PS and P4VP blocks, respectively. M_St, M_tBA, and M_P4VP are MWs of St, tBA, and 4VP monomers, respectively.

§PDI was recorded by DMF GPC.

║The core diameter and shell thickness of core/shell NCs were determined by performing image analysis on TEM images of MAPbBr₃/SiO₂ core/shell NCs.