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Fabrication of Photoluminescent Quantum Dot Thiol–yne Nanocomposites via Thermal Curing or Photopolymerization
ACS Omega ( IF 4.1 ) Pub Date : 2018-03-19 00:00:00 , DOI: 10.1021/acsomega.8b00319
Michael H. Stewart , Kimihiro Susumu 1 , Eunkeu Oh 1 , Christopher G. Brown 2 , Collin C. McClain 2 , Edward P. Gorzkowski , Darryl A. Boyd
Affiliation  

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.

中文翻译:

通过热固化或光聚合制备光致发光量子点硫醇-yne纳米复合材料

近年来,随着材料和电子制造商追求光亮,柔性,耐用,可定制和轻便的设备,坚固,柔性和透明的材料引起了人们的极大兴趣。根据起始组分的不同,使用硫醇-炔化学方法制得的聚合物已显示出异常强壮和/或柔韧性,同时还可以通过掺入纳米粒子进行改性。在本工作中,合成了新颖的配体并用于官能化各种直径的量子点(QD)。然后将功能化的QD掺入硫醇-炔预聚物基体中。这些基质随后聚合形成QD硫醇-炔纳米复合聚合物。为了证明制造过程的多功能性,对预聚物进行了热固化或光聚合。当暴露在紫外线照射下时,所得的透明纳米复合材料会表现出其中量子点的特定颜色,这表明量子点可以掺入硫醇-炔聚合物中,而不会显着改变量子点的表达。随着QD的加入,硫醇-炔纳米复合聚合物有望成为许多应用的候选材料,包括设备显示材料,光学透镜材料和/或传感器材料。
更新日期:2018-03-19
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