Design of cross-linked polyisobutylene matrix for efficient encapsulation of quantum dots

Abstract

A robust quantum dots-in-polymer composite based on a specially designed cross-linking polyisobutylene is developed. It possesses excellent photo- and chemical stability preserving the optical properties of Cu–Zn–In–S quantum dots.

Towards sustainable rubber compounds: The use of waste raw materials

“…This elastomer is characterized by an outstanding resistance to gas permeation, high damping properties, excellent chemical (harsh solvents) and oxidative (oxygen and ozone) stability and resistance to stress cracking 42,65 . PIB can be vulcanized by a combination of sulfur and t ‐butyl peroxide, 66 nevertheless, in many applications isobutylene is generally copolymerized with 1% of isoprene 67 obtaining the so called butyl rubber which can be cured via traditional methods (i.e., sulfur vulcanization 68,69 ). Moreover PIB can be added to other elastomers to form blends especially for increasing the gas permeation resistance 70 and as tackifier 71 …”

Quantum Dots Facilitate 3D Two‐Photon Laser Lithography

“…[20] In addition, grafting of ligands containing oligomeric chains of polyisobutylene onto Cu-Zn-In-S QDs or CdSe nanoplatelets enables uniform incorporation of these nanoparticles in linear or cross-linked polyisobutylene matrices. [21,22] Nevertheless, this strategy has yet to be further adopted into material development in DLW technology, resulting in limited exploration of the functional composite photoresist so far.…”

Quasiliving carbocationic polymerization of isobutylene using FeCl3 as an efficient and water-tolerant Lewis acid: synthesis of well-defined telechelic polyisobutylenes

“…[3][4][5][6]10,11 Di-and trifunctional polyisobutylenes possessing hydroxyl or methacrylate end groups along with triblock copolymers (SIBS) have gained substantial attention in recent years due to their important applications in the biomedical field (bone cements, biostable thermoplastic polyurethanes as coatings for medical devices, immuneisolation membranes etc. ), 3,[12][13][14][15][16][17][18][19][20] for constructing flexible solar cells and colour-conversion LEDs, [21][22][23][24] and for the preparation of epoxy resins with improved mechanical properties and sealants. 25,26 Although several Lewis acids such as BCl 3 , 27 TiCl 4 28 and Me n AlX 3−n (n = 1.5 or 2, X = Cl or Br) [29][30][31] are known to co-initiate the living cationic polymerization of isobutylene, TiCl 4 with rare exceptions 32,33 is used for the synthesis of di(tri)functional PIBs possessing different end groups.…”