Direct functionalization of poly(vinyl chloride) by photo-mediated ATRP without a deoxygenation procedure

Abstract

A facile and robust strategy of photo-mediated ATRP to directly modify commercial PVC and surfaces of PVC-based materials without any functional group transformation and deoxygenation procedures was reported.

Internally plasticized PVC materials via covalent attachment of aminated tung oil methyl ester

“…As seen from Fig. 5, the peak at 4.45 ppm was attributed to protons of CH-Cl (peak A of 1 H NMR spectra of PVC), and the peak at 2.06 ppm was assigned to protons of CH 2 (peak B of 1 H NMR spectra of PVC [35][36][37][38][39][40] appearing stronger with more displacement of chlorines, but the signal at 4.5 ppm corresponding to the protons of CH-Cl presented Fig. 3 1 H NMR spectra of products.…”

“…weaker gradually, [19][20][21][22][23]40 indicating the reaction between PVC and aminated tung oil methyl ester was completed.…”

Construction of chain segment structure models, and effects on the initial stage of the thermal degradation of poly(vinyl chloride)

“…[1][2][3][4][5][6][7][8] PVC is molecularly unstable toward heat, and this instability is much more pronounced for PVC than for its major competitors. 9,10 Usually, PVC can form an irregular molecular chain structure (defect structure) under PVC polymerization conditions, processing technology, and post-treatment, which had affected the thermal stability of PVC. Furthermore, defects can result from several different mechanisms, some of which have not yet been nalized, and any kind of defect can lead to poor thermal stability of PVC.…”

Controlled Growth of Ultra‐Thick Polymer Brushes via Surface‐Initiated Atom Transfer Radical Polymerization with Active Polymers as Initiators

“…Previous studies reported that poly(vinyl chloride) can be used as initiator for ATRP because of the structural defects of allyl chloride and tertiary chloride groups. [45,46] The existence of allylic chlorides and dichlorides in CPVC is revealed by nuclear magnetic resonance analysis. [47] Like in PVC, these allylic chlorides and dichlorides in CPVC could serve as initiators for ATRP.…”

“…Moreover, scanning electron microscopy was used to image and compare the polymer brush–grafted surface to the bare and initiator layer deposited surface (Figure S2, Supporting Information), further confirming the successful growth of polymer brushes on silicon substrates. Previous studies reported that poly(vinyl chloride) can be used as initiator for ATRP because of the structural defects of allyl chloride and tertiary chloride groups . The existence of allylic chlorides and dichlorides in CPVC is revealed by nuclear magnetic resonance analysis .…”