PMID- 36605652
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230111
IS  - 2046-2069 (Electronic)
IS  - 2046-2069 (Linking)
VI  - 13
IP  - 1
DP  - 2022 Dec 19
TI  - Biodegradable isocyanate-free polyurethane films via a noncatalytic route: facile 
      modified polycaprolactone triol and biobased diamine as precursors.
PG  - 309-319
LID - 10.1039/d2ra05710g [doi]
AB  - A facile synthesis of isocyanate free polyurethanes (PU) was executed by the 
      reaction of biodegradable cyclic carbonate and sustainable diamines generated via 
      chemical modification. The biodegradable polyol polycaprolactone triol (PCL) was 
      transformed into a new glycerol carbonate derivative, PCL-(COOGC)(3), and 
      subjected to polyaddition with the diamines linalool diamine (LLDA), isosorbide 
      diamine (ISODA) and hexamethylene diamine (HDA). Polyaddition of PCL-(COOGC)(3) 
      with the above diamine precursors was conducted via a one-pot reaction under 
      catalyst-free reaction conditions prior to film casting. The above precursors 
      were characterized by Fourier-transform infrared (FTIR) and (1)H and (13)C 
      nuclear magnetic resonance spectroscopies, high-resolution mass spectrometry and 
      electrospray ionization matrix-assisted laser desorption/ionization 
      time-of-flight mass spectrometry, whereas the PU films were studied by attenuated 
      total reflectance-FTIR spectroscopy, solid state (13)C NMR, scanning electron 
      microscopy, energy-dispersive X-ray spectroscopy, Raman spectroscopy, X-ray 
      diffractometry, differential scanning calorimetry and thermogravimetric analysis. 
      High onset degradation temperature (T (d)) values were observed for the PU films 
      PU-1 (345.8  degrees C), PU-2 (309.6  degrees C) and PU-3 (344.6  degrees C), and further studies, 
      including cross-link density, water contact angle, swelling behaviour and 
      biodegradation (phosphate-buffered saline medium, pH = 7.2 at 45  degrees C) 
      measurements, were conducted.
CI  - This journal is (c) The Royal Society of Chemistry.
FAU - Chelike, Dinesh Kumar
AU  - Chelike DK
AD  - Department of Chemistry, SRM Institute of Science and Technology Kattankulathur 
      Chennai 603 203 Tamil Nadu India senthilt1@srmist.edu.in senthilagt@gmail.com.
FAU - Gurusamy Thangavelu, Senthil A
AU  - Gurusamy Thangavelu SA
AUID- ORCID: 0000-0002-7298-0939
AD  - Department of Chemistry, SRM Institute of Science and Technology Kattankulathur 
      Chennai 603 203 Tamil Nadu India senthilt1@srmist.edu.in senthilagt@gmail.com.
LA  - eng
PT  - Journal Article
DEP - 20221220
PL  - England
TA  - RSC Adv
JT  - RSC advances
JID - 101581657
PMC - PMC9766200
COIS- There are no conflicts to declare.
EDAT- 2023/01/07 06:00
MHDA- 2023/01/07 06:01
PMCR- 2022/12/20
CRDT- 2023/01/06 02:38
PHST- 2022/09/10 00:00 [received]
PHST- 2022/12/06 00:00 [accepted]
PHST- 2023/01/06 02:38 [entrez]
PHST- 2023/01/07 06:00 [pubmed]
PHST- 2023/01/07 06:01 [medline]
PHST- 2022/12/20 00:00 [pmc-release]
AID - d2ra05710g [pii]
AID - 10.1039/d2ra05710g [doi]
PST - epublish
SO  - RSC Adv. 2022 Dec 20;13(1):309-319. doi: 10.1039/d2ra05710g. eCollection 2022 Dec 
      19.