Heat-resistant poly(N-(1-phenylethyl)maleimide-co-styrene) microspheres prepared by dispersion polymerization

Tong, Linyue; Cui, Xin; Yang, Wantai; Deng, Jianping

doi:10.1039/c2jm15652k

Cited by 11 publications

(6 citation statements)

References 42 publications

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“…Generally, the thermal stability of polymer microspheres can be dramatically enhanced through copolymerization with a heat-resistant monomer, which usually has rigid groups. The introduction of rigid groups into the molecular chain could simultaneously increase the intermolecular interaction, and consequently, improve the mechanical properties of the as-formed microspheres. , In our previous work, maleic anhydride (MAH) was used as a heat-resistant monomer to copolymerize with styrene (St) via self-stabilized precipitation polymerization (2SP), and the resultant copolymer particles showed better thermal stability. However, the introduction of anhydride groups inevitably brought about other problems such as easy hydrolysis and discoloration at high temperatures .…”

Section: Introductionmentioning

confidence: 99%

Highly Heat-Resistant Poly(bismaleimide-co-styrene) Microspheres Bearing Maleimide Functional Groups by Self-Stabilized Precipitation Polymerization

Jiang

Zhang

Chen

et al. 2019

Ind. Eng. Chem. Res.

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Herein, we report the synthesis of novel heat-resistant microspheres by self-stabilized precipitation copolymerization of styrene (St) and 2,2′-bis[4-(4maleimidophenoxy)phenyl]propane (BMIP) in an mN-methyl pyrrolidone (NMP)/ isopentyl acetate (IPA) mixed solvent. The effects of the solvent composition, monomer feed ratio, monomer, and initiator concentration on the size and morphology of the resultant poly(BMIP-co-St) microspheres were investigated in detail. Monodisperse, highly cross-linked poly(BMIP-co-St) microspheres with numberaverage diameters ranging from 2.23 to 1.28 μm were successfully obtained at a 1/2 molar ratio of [BMIP]/[St] in NMP/IPA (2/13, v/v). Due to the presence of a rigid imide ring and a highly cross-linked structure, the poly(BMIP-co-St) microspheres exhibited excellent thermal stability with an initial decomposition temperature up to 440 °C and a 30% char residue rate at 750 °C. Additionally, there were some unreacted maleimide groups on the surface of poly(BMIP-co-St) microspheres for further chemical modification, making the poly(BMIP-co-St) microspheres highly interesting as advanced functional materials.

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Section: Introductionmentioning

confidence: 99%

Highly Heat-Resistant Poly(bismaleimide-co-styrene) Microspheres Bearing Maleimide Functional Groups by Self-Stabilized Precipitation Polymerization

Jiang

Zhang

Chen

et al. 2019

Ind. Eng. Chem. Res.

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“…When precipitation polymerization method is taken for preparing polymer microspheres, a suitable solvent or solvent mixture may be the most important factor for forming regular microspheres. According to our previous work dealing with precipitation polymerization, we chose a mixed solvent system consisting of MEK (“good” solvent) and n ‐heptane (“poor” solvent) for performing precipitation polymerizations. Experimental results from the different solvent ratios show us that the microspheres with optimal spherical morphology appeared in the case of MEK/ n ‐heptane ratio being 4:6 (v/v) (the relevant data are presented in Table and Figure ) and more discussion is presented below.…”

Section: Resultsmentioning

confidence: 99%

Renewable Microspheres Constructed by Methyl Isoeugenol‐Derived Copolymers

Yong

Zhou

Zhang

et al. 2016

Macro Chemistry & Physics

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Biobased polymers have gathered a lot of interest and are currently attracting ever‐increasing attention. However, polymeric microspheres especially those derived from biomasses of small molecules, have not been extensively explored yet. This contribution reports recent exciting success in designing and preparing methyl isoeugenol (MeIE)‐derived renewable microspheres. Owing to the difficulty in homopolymerizing MeIE, it undergoes precipitation copolymerization with maleic anhydride to form the anticipated copolymeric microspheres in a high yield (both cross‐linked and non‐cross‐linked). The copolymers show high heat resistance, and the microspheres can be easily functionalized by taking advantage of the highly reactive anhydride groups. A novel type of cation exchange microspheres is further prepared by transforming the anhydride groups into carboxyl groups through hydrolyzation. The hydrolyzed microspheres demonstrate remarkable adsorption toward Cu2+ (maximum, 300 mg g−1). Accordingly, the microspheres may find practical applications, e.g., as green adsorbents. The established preparing methodology can also be taken for other bio‐phenylpropenes.

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“…One is to prepare a maleimide monomer by the reaction of maleic anhydride with amines and then copolymerize it with styrene through a precipitation polymerization. [19][20][21] However, the conventional process to synthesize the maleimide monomer involves the use of organic solvents, which may cause environmental issues. 22 Moreover, the complicated purification procedure of the product makes the maleimide monomer expensive.…”

Section: Introductionmentioning

confidence: 99%

Solvent-free preparation of uniform styrene/maleimide copolymer microspheres from solid poly(styrene-alt-maleic anhydride) microspheres

Chen

Zhai

et al. 2022

Polym. Chem.

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Heat-resistant poly(N-(1-phenylethyl)maleimide-co-styrene) microspheres prepared by dispersion polymerization

Cited by 11 publications

References 42 publications

Highly Heat-Resistant Poly(bismaleimide-co-styrene) Microspheres Bearing Maleimide Functional Groups by Self-Stabilized Precipitation Polymerization

Highly Heat-Resistant Poly(bismaleimide-co-styrene) Microspheres Bearing Maleimide Functional Groups by Self-Stabilized Precipitation Polymerization

Renewable Microspheres Constructed by Methyl Isoeugenol‐Derived Copolymers

Solvent-free preparation of uniform styrene/maleimide copolymer microspheres from solid poly(styrene-alt-maleic anhydride) microspheres

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