27 Result(s)

Article

Multiple comonomer concentrations prediction from FTIR spectra with quantum chemistry-based interpretation

In this study, we enhance our previously proposed modeling approach, which combines wavelet transform and linear regression and utilizes Fourier transform infrared spectroscopy spectra, to simultaneously estim...

Araki Wakiuchi, Swarit Jasial, Shigehito Asano, Ryo Hashizume… in MRS Communications (2024)

Article

Investigation of the mechanical properties and degradation of ester-free poly(trimethylene carbonate) derivatives bearing various bulky aromatic groups

Ester-free trimethylene carbonate derivatives bearing bulky aromatic groups were designed and synthesized, including those with one or two benzyl groups, diphenylmethyl groups, and triphenylmethyl groups. The ...

Rikyu Miyake, Hiroharu Ajiro in Polymer Journal (2024)

Article

Preparation of poly(N-vinyl caprolactam) with various end groups using chain transfer agents and evaluation of their effects on kinetic hydrate inhibition

Poly(N-vinylamide) derivatives were synthesized to improve the performance of kinetic hydrate inhibitors (KHIs). In this work, we synthesized poly(N-vinylformamide) (PNVF) and poly(N-vinylcaprolactam) (PVCap) by ...

Jaeyeong Choi, Malcolm A. Kelland, Hiroya Furumai, Yumi Miyaji… in Polymer Bulletin (2022)

Article

Radical copolymerization on fluoroalkyl α-chloroacrylate monomers for copolymer composition control

The radical copolymerization on α-substituted fluoroalkyl acrylate (FA) monomer bearing C4, C6, and C8 as perfluoroalkyl (R_f) groups, as well as the variation of α-substituents, hydrogen, methyl, and chlorine wit...

Ikuo Yamamoto, Shinichi Minami, Tsuyoshi Ando, Hiroharu Ajiro in Polymer Bulletin (2022)

Article

Preparation and analyses of stereocomplexes of a polylactide homopolymer and copolymer with poly(ethylene glycol) and urethane cap**

Polylactide (PLA) stereocomplexes (SCs) formed by poly(L,L-lactide) (PLLA) and poly(D,D-lactide) (PDLA) are well known, and their derivatives and copolymers have also been reported. However, little research ha...

Jaeyeong Choi, Hiroharu Ajiro in Polymer Journal (2022)

Article

Fabrication of flexible blend films using a chitosan derivative and poly(trimethylene carbonate)

To modify the flexibility of chitosan (CS), poly(trimethylene carbonate) (PTMC) and its derivatives and copolymers were blended with a chitosan derivative, N,N,N-trimethylchitosan (TM-CS). The tensile strength of...

Koichi Irikura, Natjaya Ekapakul, Chantiga Choochottiros… in Polymer Journal (2021)

Article

Glycerol-modified poly(ε-caprolactone): an biocatalytic approach to improve the hydrophilicity of poly(ε-caprolactone)

Novel poly(ε-caprolactone) (PCL)–glycerol polyester was synthesized in one step in the presence of Novozym 435 under mild reaction conditions. The objective of the study was to investigate the feasibility of e...

Soma Chakraborty, James Nicolas M. Pagaduan, Zara Kryzel A. Melgar… in Polymer Bulletin (2019)

Article

The electrostatic advantages of cross-linked polystyrene organogels swollen with limonene for selective adsorption and storage of hydrophobic drugs

The organogels poly(styrene-co-divinylbenzene), PS gel (1); poly(styrene-co-divinylbenzene-co-vinylpyridine), PS-VP gel (2); poly(styrene-co-divinylbenzene-co-vinylbenzoic acid), PS-VBA gel (3); and poly(styrene-

Preeyarad Charoensumran, Hiroharu Ajiro in Polymer Journal (2018)

Article

A novel comb-shaped polymethacrylate-based copolymers with immobilized 2,4-dihydroxybenzaldehyde for antifungal activity

Poly(methacrylic acid-co-2-aminoethyl methacrylate) (MAA-AMA) was simply synthesized by free radical polymerization. Immobilization of 2,4-dihydroxybenzaldehyde on MAA-AMA was done via Schiff base formation to ob...

Nalinthip Chanthaset, Hiroharu Ajiro, Mitsuru Akashi… in Polymer Bulletin (2018)

Article

Pentaerythritol particles covered by layer-by-layer self assembled thin films with stereocomplex of isotactic poly(methyl methacrylate) and syndiotactic poly(methyl methacrylate)

In this paper, we present a different approach of coating a phase change material (PCM) for a possible use in thermal energy storage. We focused on layer-by-layer coating of pentaerythritol (PE) particles, whi...

Steffen Seitz, Mitsuru Akashi, Hiroharu Ajiro in Colloid and Polymer Science (2017)

Reference Work Entry In depth

Template Polymerization (Molecular Templating)

Mitsuru Akashi, Hiroharu Ajiro in Encyclopedia of Polymeric Nanomaterials (2015)

Living Reference Work Entry In depth

Template Polymerization (Molecular Templating)

Mitsuru Akashi, Hiroharu Ajiro in Encyclopedia of Polymeric Nanomaterials