Glass transition temperature enhancement of PMMA through copolymerization with PMAAM and PTCM mediated by hydrogen bonding

Lin, Chien‐Ting; Kuo, Shiao‐Wei; Huang, Chih‐Feng; Chang, Feng‐Chih

doi:10.1016/j.polymer.2009.12.039

Cited by 54 publications

(32 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This T g is slightly higher than the ca. À40 C T g of the LiTFSIPEO system [33], which is to be expected since PMMA has a T g of 105 C [34]. Furthermore, using said T g for PMMA and À53 C for PEGMA [12], the theoretical T g according to the Fox-Flory equation is À30 C, which corresponds well to the experimentally obtained.…”

Section: Thermal Propertiessupporting

confidence: 75%

Graft copolymer electrolytes for high temperature Li-battery applications, using poly(methyl methacrylate) grafted poly(ethylene glycol)methyl ether methacrylate and lithium bis(trifluoromethanesulfonimide)

Bergman

Bergfelt

Sun

et al. 2015

Electrochimica Acta

View full text Add to dashboard Cite

Section: Thermal Propertiessupporting

confidence: 75%

Graft copolymer electrolytes for high temperature Li-battery applications, using poly(methyl methacrylate) grafted poly(ethylene glycol)methyl ether methacrylate and lithium bis(trifluoromethanesulfonimide)

Bergman

Bergfelt

Sun

et al. 2015

Electrochimica Acta

View full text Add to dashboard Cite

“…The formation of hydrogen Figure 1 FTIR spectra of PVA coating samples bonding can be detected from FTIR study. It had been reported that the presence of hydrogen bonding increases T g (Lin et al, 2010).…”

Section: Resultsmentioning

confidence: 98%

Characterisation of poly(vinyl alcohol) coating mixed with anthocyanin dye extracted from roselle flower with different nitrate salt

Lee

Halim

Arof

et al. 2013

Pigment &Amp; Resin Technology

View full text Add to dashboard Cite

Purpose -The purpose of this paper is to develop a new water-based coating system composed of poly(vinyl alcohol) and anthocyanin colourant extracted from Hibiscus sabdariffa L. and to characterise the system. Design/methodology/approach -Anthocyanin from Hibiscus sabdariffa L. (roselle) calyxes was extracted by using distilled water and filtered to remove insoluble particle. Salts introduced into the extract were 5wt percent calcium nitrate, 5wt percent magnesium nitrate, and 5wt percent zinc nitrate. The solution was mixed with poly(vinyl alcohol) in ratio of 3:1. The mixtures were coated on glass substrate and allowed to cure for approximately one day. Colour of the extract systems was determined by CIELab colourimetry. FTIR spectroscopy was conducted on the samples to identify their functional groups and changes upon addition of salt. Thermal stability was assessed by thermogravimetric analysis (TGA). Differential scanning calorimetry (DSC) was employed to measure the glass transition temperature Tg of the samples. XRD was employed to determine the amorphous properties of the coating samples. Findings -From FTIR spectroscopy, shifting in the OH stretching and CH2 bending bands was attributed to hydrogen bonds formation between PVA and nitrate salt. Shifting in the main decomposition step in samples with addition of nitrate salts in TGA was due to interaction of PVA and nitrate. Increase in glass transition temperature of samples with salts was attributed to the formation of hydrogen bonding. From XRD study, increase in the amorphous properties was due to the incorporation of nitrate salts into PVA coating. Research limitations/implications -Limitation of implementating poly(vinyl alcohol) as coating is caused by its weak water resistance and hydrophilic properties. This study could bring about research towards incorporation of different natural colourant with different binder materials to form coatings which are environmental-friendly and low cost. Practical implications -Mixture of PVA and anthocyanin colourant from roselle for use as coating has been developed. The coating can find usage in various applications such as coloured coating for furniture and wooden materials for decorative purposes, biodegradable design materials for interior purposes. It can be practically applied on a variety of substrates such as glass and wood. Originality/value -Development of water-based coating from PVA binder with anthocyanin colourant is introduced in this study.

show abstract

“…However, the limited damping temperature range ∆T (usually covers 20-30 • C), the low storage modulus E (less than 1 GPa) and the mismatch between the working frequencies and actual required frequencies limit the applications of polymers as damping materials in engineering [3]. The several existing types of damping polymers (such as the polymer blend, copolymer, IPNs) have still not solved these deficiencies [4][5][6][7][8][9]. Therefore, damping polymers must be attached onto substrates to work as free damping or constrained damping structures instead of being singly used as structures until now [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Composition Distribution, Damping and Thermal Properties of the Thickness-Continuous Gradient Epoxy/Polyurethane Interpenetrating Polymer Networks

Zhang

Shi

et al. 2017

Applied Sciences

View full text Add to dashboard Cite

A thickness gradient interpenetrating polymer network (IPN) was easily created that takes advantage of the relatively poor compatibility and curing rates discrepancy between epoxy (EP) and polyurethane (PU). Ultraviolet absorption spectrum (UV-Vis), thermogravimetric (TG), Differential scanning calorimetry (DSC), Dynamic thermomechanical analysis (DMA), Atomic force microscope (AFM) and water contact angle were adopted to characterize this IPN structure. We found that the absorption in visible light region, glass-transition temperatures (T g ), thermal decomposition temperatures (T d ) and Derjaguin-Muller-Toporov (DMT) modulus were increasing along with the gradient direction from bottom side to top side of the IPN. While the absorption in ultraviolet region and adhesion force were decreasing along with the gradient direction from bottom side to top side of the IPN. DMA analysis demonstrates that this continuous gradient IPN has a good balance between the damping temperature range and the loss factor which is suitable for using as a self-supporting damping structure.

show abstract

Glass transition temperature enhancement of PMMA through copolymerization with PMAAM and PTCM mediated by hydrogen bonding

Cited by 54 publications

References 18 publications

Graft copolymer electrolytes for high temperature Li-battery applications, using poly(methyl methacrylate) grafted poly(ethylene glycol)methyl ether methacrylate and lithium bis(trifluoromethanesulfonimide)

Graft copolymer electrolytes for high temperature Li-battery applications, using poly(methyl methacrylate) grafted poly(ethylene glycol)methyl ether methacrylate and lithium bis(trifluoromethanesulfonimide)

Characterisation of poly(vinyl alcohol) coating mixed with anthocyanin dye extracted from roselle flower with different nitrate salt

Composition Distribution, Damping and Thermal Properties of the Thickness-Continuous Gradient Epoxy/Polyurethane Interpenetrating Polymer Networks

Contact Info

Product

Resources

About