	US 12,258,428 B1
	Method for making smart optical materials by solution polymerization
Hajo Idriss Mohammed Idriss, Riyadh (SA); Khalid Hassan Ibnouf Ahmed, Riyadh (SA); Osamah Abdulrahman Aldaghri, Riyadh (SA); Abueliz Khalid Modwi Khalid, Riyadh (SA); and Amin Osman Elzupir Alamalhuda, Riyadh (SA)
Assigned to IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY, Riyadh (SA)
Filed by IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY, Riyadh (SA)
Filed on Oct. 15, 2024, as Appl. No. 18/915,811.
Application 18/915,811 is a continuation of application No. 18/798,890, filed on Aug. 9, 2024, granted, now 12,152,091.
Application 18/798,890 is a continuation of application No. 18/647,753, filed on Apr. 26, 2024, granted, now 12,110,350, issued on Oct. 8, 2024.
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 2/46 (2006.01); C08F 2/06 (2006.01); C08F 2/44 (2006.01); C08F 2/50 (2006.01); C08F 120/06 (2006.01); C08G 61/04 (2006.01); H01S 5/36 (2006.01)

CPC C08F 120/06 (2013.01) [C08F 2/06 (2013.01); C08F 2/44 (2013.01); H01S 5/36 (2013.01)]

15 Claims

1. A method for making a smart optical material (SOM) by solution polymerization, comprising:

mixing polypropylene in a solvent to dissolve the polypropylene and form a first solution;

mixing zinc acetate in 2-hydroxyethyl methacrylate and the solvent then heating to a temperature of from 50° C. to 150° C. to dissolve the zinc acetate in the 2-hydroxyethyl methacrylate to thereby form a second solution;

mixing rhodamine B and a peroxide into the second solution to form a third solution;

mixing the third solution into the first solution to form a reaction solution, wherein the peroxide initiates polymerization of the 2-hydroxyethyl methacrylate to form poly(2-hydroxyethyl methacrylate); and

separating the SOM from the reaction solution by drying,

wherein the SOM has at least two bandgaps,

wherein a first bandgap is from 1.4-1.5 eV, and

wherein a second bandgap is from 1.8-1.9 eV.