Differential analysis on precise determination of molecular weight of triblock copolymer using SEC/MALS and MALDI-TOF MS

Fan, Wei; Fan, Xiaodong; Tian, Wei; Zhu, Xiuzhong; Zhang, Wanbin

doi:10.1016/j.polymertesting.2014.08.014

Cited by 14 publications

(1 citation statement)

References 26 publications

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“…99 The crossover reaction during ROMP block copolymerization of 3-methyl-3-phenylcyclopropene and norbornene derivatives was investigated using MALDI-TOF-MS by Binder et al 100 Samperi et al applied MALDI-TOF-MS to characterize the linear-hyperbranched hybrid poly(butylene adipate) (HPBA) copolymers. 101 Djordjevic et al reported characterization of polymethyl methacrylate- co -methacrylic acid (PMMA- co -MAA) polymers by MALDI-TOF-MS. 102 Triblock copolymers consist of three block chains that make up the basic unit, and their characterization was partially performed by MALDI-TOF-MS, 103–105 and it was also used for monitoring the synthesis of poly(ε-caprolactone)- b -poly(ethylene glycol) (PCL- b -PEG) star polymer, and multi-block and random macrocyclic copolymers. 81,106 Alternating copolymers containing poly(styrene oxide- alt -alicyclic anhydrides), 107 poly(3,4-dihydrocoumarin- alt -styrene oxide), 108 poly(phthalic anhydride- alt -cyclohexane oxide) 109 and poly(styrene- alt -hydroxyphenylmaleimide) 110 were analyzed by MALDI-TOF-MS which showed their perfectly alternating polyesters.…”

Section: Applicationsmentioning

confidence: 99%

Applications of MALDI-TOF-MS in structural characterization of synthetic polymers

Sun

Kou

2023

Anal. Methods

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Section: Applicationsmentioning

confidence: 99%

Applications of MALDI-TOF-MS in structural characterization of synthetic polymers

Sun

Kou

2023

Anal. Methods

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Polyether polyols as GPC calibration standards for determination of molecular weight distribution of polyether polyols

Noor

Sendijarević²,

Hassan

et al. 2015

J of Applied Polymer Sci

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Average molecular weights (M n , M w and M p ) are important characteristics of oligomers and polymers, and therefore there is a need to have a precise and reliable determination method. A gel permeation chromatography (GPC) coupled with a single refractive index detector was used to determine the molecular weight distributions of commercial polyether polyols calibrated against a series of polyether polyols with known molecular weights and low polydispersity. Results of these GPC analyses were compared to the ones calibrated against the commercially available polystyrene (PS) standards. The number-average molecular weights (M n ) obtained with GPC using polyether polyols calibration were closer to the theoretical values than the M n obtained using PS as calibration standards. Hence, these GPC analyses using polyether polyols as calibration standards can provide reliable determination of molecular weight distribution of polyether polyols and can be potentially applied to natural oil-based polyols, including palm oil-based polyols.

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Facile construction of recyclable heat‐resistant polymers via alkaline‐induced cation‐π cross‐linking

Yuan,

Huang,

et al. 2024

J of Applied Polymer Sci

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The cation‐π cross‐linked heat‐resistant K‐poly(N‐aryleneindole sulphone) PINSU film, which has a high glass transition temperature (Tg = 268°C) and a decomposition temperature (Td = 547°C), was prepared by soaking PINSU film in alkaline aqueous solutions. Compared with the linear polymer PINSU, the Tg and Td of the K‐PINSU were significantly enhanced. The dynamic cation‐π cross‐linking can be reversibly removed and reconstructed driven by external stimulations in the polymer network, which endows the cross‐linked K‐PINSU with cyclable behavior and excellent mechanical stability. In addition, we have successfully demonstrated that the Tg of the K‐PINSU can be nondestructively detected by monitoring the changes in fluorescence intensity.

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Differential analysis on precise determination of molecular weight of triblock copolymer using SEC/MALS and MALDI-TOF MS

Cited by 14 publications

References 26 publications

Applications of MALDI-TOF-MS in structural characterization of synthetic polymers

Applications of MALDI-TOF-MS in structural characterization of synthetic polymers

Polyether polyols as GPC calibration standards for determination of molecular weight distribution of polyether polyols

Facile construction of recyclable heat‐resistant polymers via alkaline‐induced cation‐π cross‐linking

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