Vinyl Ketones Containing Fluorene Skeletons for Acrylic Resins with High Refractive Index and Negative Birefringence DOI Creative Commons

Masatoshi Ohyama,

Rie Yasuda,

Hirotsugu Kuratani

и другие.

Journal of Polymer Science, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 29, 2024

ABSTRACT The radical (co)polymerization of 2‐acryloylfluorene ( 1a ) and 2‐acryloyl‐9,9‐dimethylflureoene 1b with methyl methacrylate the thermal optical properties resulting (co)polymers are investigated. Because two groups at 9‐position prevent interaction aromatic rings, solubility is drastically improved for homopolymer . incorporation ‐units increases both glass transition temperature (118°C–170°C) 5% weight‐loss (289°C–354°C). In addition, refractive index polymers 589 nm from 1.49 to 1.65 higher mole fractions ‐units, whereas negative birefringence significantly increases. These features attributed restricted bond rotation rigid pendant bound backbone via an sp 2 carbon atom (carbonyl group).

Язык: Английский

Biobased Sulfur- and Phosphate-Containing High-Refractive-Index Polymers: Substituent Effects on Optical Properties of Polymers DOI

Zongao Dou,

Hemin Zhang,

Jiajun Li

и другие.

Biomacromolecules, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 6, 2024

Four biobased phosphate-containing aryl monomers with methoxy, allyl, and vinyl groups as substituents have been successfully synthesized. Copolymerizing these thiophenol or mercaptans via the photoclick thiol-ene reaction gives polymers refractive indices (

Язык: Английский

Процитировано

1
Vinyl Ketones Containing Fluorene Skeletons for Acrylic Resins with High Refractive Index and Negative Birefringence DOI Creative Commons

Masatoshi Ohyama,

Rie Yasuda,

Hirotsugu Kuratani

и другие.

Journal of Polymer Science, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 29, 2024

ABSTRACT The radical (co)polymerization of 2‐acryloylfluorene ( 1a ) and 2‐acryloyl‐9,9‐dimethylflureoene 1b with methyl methacrylate the thermal optical properties resulting (co)polymers are investigated. Because two groups at 9‐position prevent interaction aromatic rings, solubility is drastically improved for homopolymer . incorporation ‐units increases both glass transition temperature (118°C–170°C) 5% weight‐loss (289°C–354°C). In addition, refractive index polymers 589 nm from 1.49 to 1.65 higher mole fractions ‐units, whereas negative birefringence significantly increases. These features attributed restricted bond rotation rigid pendant bound backbone via an sp 2 carbon atom (carbonyl group).

Язык: Английский

Процитировано

0