Polypyrrole inter-layered low temperature curing benzoxazine matrices with enhanced thermal and dielectric properties

Prabunathan, P.; Vasanthakumar, Ajithkumar; Manickam, Manoj; Arumugam, Hariharan; Alagar, Muthukaruppan

doi:10.1007/s10965-020-2022-z

Cited by 14 publications

(4 citation statements)

References 62 publications

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“…Polybenzoxazines derived from a mixture of two or three BOx can often exhibit better thermal stability and flame retardancy, along with improved mechanical and barrier properties, compared with their mono-sourced analogues. 301–309 Few other studies have been devoted to the co-curing of furan-based BOx with the commercial epoxy EPON Resin 828, 310 polypyrrole 311 and epoxidized castor oil, 312,313 as well as mechanochemical preparation of pBOx-based polyamide resin, 314 resulting in a variety of materials with tunable properties depending on the nature and the ratio of the reagents.…”

Section: Branched Typementioning

confidence: 99%

Recent advances in the development of green furan ring-containing polymeric materials based on renewable plant biomass

Karlinskii

Ananikov

2023

Chem. Soc. Rev.

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Section: Branched Typementioning

confidence: 99%

Recent advances in the development of green furan ring-containing polymeric materials based on renewable plant biomass

Karlinskii

Ananikov

2023

Chem. Soc. Rev.

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“…Primary, secondary and tertiary amines successfully assist ring opening reaction of mono-oxazine in polar solvents, and crosslinking reactions was realized in case of reaction of diamine with bis-benzoxazine at room temperature [ 324 ]. Addition of polypyrrole (PPy, 5 wt%) also mediates the ROP reaction, and T p value was significantly reduced for C-fa and BF-A, from 245 to 185 °C and 226 to 165 °C, respectively [ 325 ]. Imidazoles with and without the labile hydrogen are also reported as good catalysts [ 326 , 327 , 328 , 329 , 330 ].…”

Section: Acceleration Of the Rate Of Polymerization Via Intermolecular Interactionmentioning

confidence: 99%

Review on the Accelerated and Low-Temperature Polymerization of Benzoxazine Resins: Addition Polymerizable Sustainable Polymers

et al. 2021

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Due to their outstanding and versatile properties, polybenzoxazines have quickly occupied a great niche of applications. Developing the ability to polymerize benzoxazine resin at lower temperatures than the current capability is essential in taking advantage of these exceptional properties and remains to be most challenging subject in the field. The current review is classified into several parts to achieve this goal. In this review, fundamentals on the synthesis and evolution of structure, which led to classification of PBz in different generations, are discussed. Classifications of PBzs are defined depending on building block as well as how structure is evolved and property obtained. Progress on the utility of biobased feedstocks from various bio-/waste-mass is also discussed and compared, wherever possible. The second part of review discusses the probable polymerization mechanism proposed for the ring-opening reactions. This is complementary to the third section, where the effect of catalysts/initiators has on triggering polymerization at low temperature is discussed extensively. The role of additional functionalities in influencing the temperature of polymerization is also discussed. There has been a shift in paradigm beyond the lowering of ring-opening polymerization (ROP) temperature and other areas of interest, such as adaptation of molecular functionality with simultaneous improvement of properties.

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“…Similar to other primary and secondary amines, the PANI with continuous benzene ring linked through a secondary aminesactas a catalyst. The secondary amines nitrogen atoms of polyaniline donates their lone pair of electron to initiate the polymerization through nucleophilic attack and favours rapid formation of zwitter ion intermediate (Scheme 1), which in turn proceeds with proton transfer and assist the polymerization [42]. In the present work, curing temperature of C-ddm in the presence of 2 wt.…”

Section: Curing Behaviour Of C-ddm and Pani/c-ddmmentioning

confidence: 73%

“…Previously our group have used tertiary amine as catalyst [41]. Very recently, Polypyrrole (PPy) catalyzed curing of benzoxazine at low temperature was explored [42]. Commercially available primary amines [38] and amine-capped aniline trimer (quinoid) are chosen as catalyst to cure benzoxazines [43] by different groups.…”

Section: Introductionmentioning

confidence: 99%

Low Temperature Curable Polyaniline/Bio-based polybenzoxazine Coated Cotton Fabric with Superior UV shielding and Oil-water Separation behaviours

Prabunathan¹,

Alagar²

2021

Preprint

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The present work detailsabout the low temperature curingbehaviour of bio-benzoxazine (C-ddm) prepared using cardanol and diaminodiphenylmethane (ddm)in the presence of polyaniline (PANI). Interestingly, it was found that the curing temperature (Tp) of the benzoxazine monomer (C-ddm) has significantly reduced to 227 ºC from 271 ºC with the incorporation of 2wt% of PANI. The plausible curing mechanism of benzoxazine ring catalysed by PANI was also discussed. Further, the resulted PANI/poly(C-ddm) matrices possessa marginally improvedvalues of glass transisition temperature and char yield. Further, PANI/poly(C-ddm) coated cotton fabric was studied for its UV shielding and surface properties. Furthermore, the UV shielding and surface behaviours of PANI/poly(C-ddm) coated cotton fabrics were explored. The PANI/poly(C-ddm) coated cotton fabric delivered UPF rating as high as 50 + and water contact angle value of162°. In addition, the PANI/poly(C-ddm) coated cotton fabric wasverified for its oil-water separation behavior. It was observed that the PANI/poly(C-ddm) coated cotton fabric offered97.5 % separation efficiency with enhanced flux value of about 6450 L/m2h flux.Thus, the obtained results suggest that the PANI/poly(C-ddm) can be used some of the industrial and environmental surface protection applications.

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Polypyrrole inter-layered low temperature curing benzoxazine matrices with enhanced thermal and dielectric properties

Cited by 14 publications

References 62 publications

Recent advances in the development of green furan ring-containing polymeric materials based on renewable plant biomass

Recent advances in the development of green furan ring-containing polymeric materials based on renewable plant biomass

Review on the Accelerated and Low-Temperature Polymerization of Benzoxazine Resins: Addition Polymerizable Sustainable Polymers

Low Temperature Curable Polyaniline/Bio-based polybenzoxazine Coated Cotton Fabric with Superior UV shielding and Oil-water Separation behaviours

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