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You searched for: Journal name Journal of polymer science Remove constraint Journal name: Journal of polymer science Subject term Raman spectroscopy Remove constraint Subject term: Raman spectroscopy Subject term differential scanning calorimetry Remove constraint Subject term: differential scanning calorimetry
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1. Nascent particle sizes and degrees of entanglement are responsible for the significant differences in impact strength of ultrahigh molecular weight polyethylene

Author:
Huan Zhang; Shicheng Zhao; Xin Yu; Zhong Xin; Chunlin Ye; Zhi Li; Jincheng Xia
Source:
Journal of polymer science 2019 v.57 no.10 pp. 632-641
ISSN:
0887-6266
Subject:
Raman spectroscopy; crystal structure; differential scanning calorimetry; impact strength; industrial applications; molecular weight; particle size; polyethylene; rheological properties; rheometers; scanning electron microscopy; thermal properties
Abstract:
... The physical properties of ultrahigh molecular weight polyethylene (UHMWPE) are generally highly dependent on its molecular weight. However, in our study, it was found that two UHMWPE samples of similar molecular weight, SLL‐5 and GUR 4150, have significantly different impact strengths, with the Charpy impact strength of GUR 4150 being almost 3.4 times that of SLL‐5. To reveal the reasons, the str ...
DOI:
10.1002/polb.24819

2. Synthesis and crosslinking reaction of polyacetylenes substituted with benzoxazine rings: Thermally highly stable benzoxazine resins

Author:
Masahide Goto; Yu Miyagi; Masaki Minami; Fumio Sanda
Source:
Journal of polymer science 2018 v.56 no.16 pp. 1884-1893
ISSN:
0887-624X
Subject:
Raman spectroscopy; acetylene; catalysts; contact angle; crosslinking; differential scanning calorimetry; hydrophilicity; moieties; nitrogen; polyacetylenes; polymerization; polymers; refractive index; resins; thermogravimetry
Abstract:
... Novel polyacetylenes, poly(1) and poly(2) substituted with benzoxazine rings were synthesized by the polymerization of the corresponding acetylene monomers 1 and 2 using Rh catalysts, [(nbd)RhCl]₂, and (nbd)Rh⁺B–Ph₄ (nbd = 2,5‐norbornadiene). The polymers were heated at 250 °C under N₂ to obtain the corresponding polybenzoxazine resins, poly(1)′ and poly(2)′ possessing polyacetylene main chains vi ...
DOI:
10.1002/pola.29076

3. Thermal curing behavior of MWCNT modified vinyl ester-polyester resin suspensions prepared with 3-roll milling technique

Author:
Seyhan, A.T.; de la Vega, Alejandra; Tanoglu, M.; Schulte, K.
Source:
Journal of polymer science 2009 v.47 no.15 pp. 1511-1522
ISSN:
0887-6266
Subject:
Fourier transform infrared spectroscopy; Raman spectroscopy; activation energy; carbon nanotubes; differential scanning calorimetry; heat; mechanical properties; milling; nanocomposites; polymers; styrene
Abstract:
... This study aims to investigate the curing behavior of a vinyl ester-polyester resin suspensions containing 0.3 wt % of multiwalled carbon nanotubes with and without amine functional groups (MWCNTs and MWCNT-NH₂). For this purpose, various analytical techniques, including Differential Scanning Calorimetry (DSC), Fourier infrared spectroscopy (FTIR), Raman Spectroscopy, and Thermo Gravimetric Analyz ...
DOI:
10.1002/polb.21755