Stewart Michael H, Susumu Kimihiro, Oh Eunkeu, Brown Christopher G, McClain Collin C, Gorzkowski Edward P, Boyd Darryl A
Optical Sciences Division, Materials Science and Technology Division, Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC 20375, United States.
Sotera Defense Solutions, Inc., 7230 Lee Deforest Dr Ste 100, Columbia, Maryland 21046, United States.
ACS Omega. 2018 Mar 19;3(3):3314-3320. doi: 10.1021/acsomega.8b00319. eCollection 2018 Mar 31.
Strong, flexible, and transparent materials have garnered tremendous interest in recent years as materials and electronics manufacturers pursue devices that are bright, flexible, durable, tailorable, and lightweight. Depending on the starting components, polymers fabricated using thiol-yne chemistry have been shown to be exceptionally strong and/or flexible, while also being amenable to modification by the incorporation of nanoparticles. In the present work, novel ligands were synthesized and used to functionalize quantum dots (QDs) of various diameters. The functionalized QDs were then incorporated into thiol-yne prepolymer matrices. These matrices were subsequently polymerized to form QD thiol-yne nanocomposite polymers. To demonstrate the versatility of the fabrication process, the prepolymers were either thermally cured or photopolymerized. The resulting transparent nanocomposites expressed the size-specific color of the QDs within them when exposed to ultraviolet irradiation, demonstrating that QDs can be incorporated into thiol-yne polymers without significantly altering QD expression. With the inclusion of QDs, thiol-yne nanocomposite polymers are promising candidates for use in numerous applications including as device display materials, optical lens materials, and/or sensor materials.
近年来，随着材料和电子制造商追求明亮、灵活、耐用、可定制且轻便的设备，坚固、柔韧且透明的材料引起了极大的关注。根据起始成分，使用硫醇-炔化学法制备的聚合物已被证明具有非凡的强度和/或柔韧性，同时还可通过掺入纳米颗粒进行改性。在本工作中，合成了新型配体并用于功能化各种直径的量子点（QD）。然后将功能化的量子点掺入硫醇-炔预聚物基质中。随后将这些基质聚合以形成量子点硫醇-炔纳米复合聚合物。为了证明制造过程的通用性，预聚物可以进行热固化或光聚合。所得的透明纳米复合材料在暴露于紫外线照射时表现出其中量子点的尺寸特异性颜色，这表明量子点可以掺入硫醇-炔聚合物中而不会显著改变量子点的表现。由于包含了量子点，硫醇-炔纳米复合聚合物有望用于众多应用，包括作为器件显示材料、光学透镜材料和/或传感器材料。
