Polystyrene braid

It should be noted that a TL, l would not be expected in this polystyrene) braid sample because of its high molecular weight (approximately 100,000) (46). Also, this analysis of the composite structure of the braid supports Nielsen s (47) suggestion that rL, L arises solely from the residual elasticity of the glass. The torsional pendulum, braid, and TL, l will be discussed in more detail elsewhere (16,17). 

Trithiocarbonates (TTC) also offer an interesting alternative platform by dynamic covalent reshuffling reactions of TTC via a free radical mechanism shown in Fig. 15b. It was first introduced into polyfmethyl methacrylate) (PMMA) and polystyrene (PS) gels as a covalent crosslinker, which exhibited dynamic properties [64]. Following this, it was found that the C-S braids of TTC can be photostimulated, and high segmental mobdity of the polymer matrix obtained by RAFT copolymerization of -butyl acrylate (BA) and a TTC crosslinker can facilitate repetitive network repairs using UV radiation at 330 nm [64]. 

Torsional braid analysis (Fig. 9) shows that there existed two transition temperatures from room temperature to 120 C. Transitions at 52 and 82 C are due to the melting of PEO crystal and glass transition of polystyrene... 

Torsional Braid Analysis (TBA)l and Differential Scanning Calorimetry (DSC) have revealed the existence of a liquid-liquid transition, Tlying above T. in a series of anionic polystyrenes, blends of the same, and one plasticized anionic polystyrene. - a general summary of these results, with critical comments, has been prepared. - ... 

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